Questions Asked on
February 25, 2014

chemistry
You take an aspirin tablet (a compound consisting solely of carbon, hydrogen, and oxygen) with a mass of 1.00 g, combust it under an oxygen atmosphere, and collect 2.20 g of carbon dioxide and 0.400 g water. The molar mass of aspirin is between 170 and 190
asked by Anonymous 
chemistry
at an equilibrium mixture of PCl5, PCl3, and Cl2 has partial pressures of 217.0 Torr, 13.2 Torr and 13.2 Torr respectively. a quantity of Cl2 is injected into the mixture, and the total pressure jumps to 263.0 Torr (at the moment of mixing). the system
asked by lasya 
Chemistry
The empirical formula of a group of compounds is CHCl. Lindane, a powerful insecticide, is a member of this group. The molar mass of lindane is 290.8 g/mol. How many atoms of carbon does a molecule of lindane contain?
asked by Anonymous 
Science help ms sue.
Multiple Choice 1. Which of the following terms refers to an object that orbits the sun and has enough gravity to be spherical but has not cleared the area of its orbit? (1 point) comet asteroid dwarf planet planet 2. Which of the following statements
asked by josh 
The Power of Media
#1. Which of the following is an example of a print medium? a) a blog b) a newspaper c) a magazine’s website d) all of the above ******* #2. Which of the following is an example of a public service announcement, or PSA? a) a commercial advertising an
asked by Sabrina 
CHEM
a period 2 nonmetal, X, forms the molecular compound NX3. Which of the following are also correct formulas for molecular compounds involving X? HX OX2 C2X pleas explain why thank you so much
asked by layla 
Geometry
According to the given information, segment AB is parallel to segment DC and segment BC is parallel to segment AD.. Construct diagonal A C with a straightedge. It is congruent to itself by the Reflexive Property of Equality. ________________. Angles BCA
asked by David 
Chemistry
The element P (mass no.=39) and Q (mass no. =80) contain 20 and 45 neutrons respectively in their nucleus. Give their electron configuration separately
asked by Taylor Beach 
Educational tech (Please check my answers)
Which of the following terms refers to legal protection provided against copying, distributing, performing, or changing both published and unpublished works? a. Intangible property b. tangible property c. copyright****** d. intellectual property What is
asked by Hannah 
Chem
What is the formula for an ionic compound that contains the elements calcium and fluorine? Is it CaF2? (small 2) Thanks MC
asked by mysterychicken 
chemistry
which of the following tetrahedral molecules is polar? please explain CH4 CF4 CH3F thanks
asked by Johnny 
chemistry
What is the molarity of a solution composed of 2.23 g of potassium iodide (KI) dissolved in enough water to make 0.181 L of solution? Answer in units of M
asked by Roberta 
Statistics
In a study, nine tires of a particular brand were driven on a track under identical conditions. Each tire was driven a particular controlled distance (measured in thousands of miles), and afterward the tread depth was measured. Tread depth is measured in
asked by Tracy 
CHEM
In which of the following pairs of compounds are both members of the pair molecular compounds? PCl3 and LiBr CCl4 and KOH NaH and CaF2 Please explain. thank you so much
asked by layla 
AP Chemistry
Which solution has the highest pH? 1. 0.1 M C6H5NH3Cl, Kb C6H5NH2 = 4.2 × 10−10 2. 0.1 M NH2(OH)2Cl, Kb NH2OH = 6.6 × 10−9 3. 0.1 M NaCl, Kb zero 4. 0.1 M NH4Cl, Kb NH3 = 1.8 × 10−5 5. 0.1 M CH3NH3Cl, Kb CH3NH2 = 5.0 × 10−4
asked by Anonymous 
Stats
In 1898 L. J. Bortkiewicz published a book entitled The Law of Small Numbers. He used data collected over 20 years to show that the number of soldiers killed by horse kicks each year in each corps in the Prussian cavalry followed a Poisson distribution
asked by Ashley 
Calculus Help Please!!!
if f(x)= x+(1/x), find f'(x) using the limit definition of derivative. Please show steps!!! Thank you!!!
asked by Tenshi 
Science
Calculate the heat required to raise the temperature of 10kg of copper from 20°C to 30°C (S.H.C. of copper = 400J/kg k).
asked by Ebenezer 
Finance
Crossfade Co. issued 15year bonds two years ago at a coupon rate of 6.9 percent. The bonds make semiannual payments. Required: If these bonds currently sell for 94 percent of par value, what is the YTM?
asked by Alec 
Chemistry
Calculate the total heat energy needed to convert 110g of ice at 10°C to steam at 110°C..?
asked by Tiffany 
social studies
In 1846, the population of San Francisco, California, was only 200. By 1852, the city's population was 36,000. Which contributed the most to San Francisco's population change? (5 points) The Gold Rush The MexicanAmerican War The Monroe Doctrine The Trail
asked by Jenna 
English
In the sentence, The hummingbird is the only bird that can fly backward, the verb is either "is" or "can fly" I cannot determine what the subordinate clause is.
asked by David 
math
Triangle ADE is proportional to Triangle ABC. The Length of DE is 20 Ft: the Length of AB is 6 ft. and the Length of BC is 8 Ft. What is the length of AD?
asked by Stan 
Algebra
Total revenue is the total amount of money taken in by a business. An appliance firm determines that when it sells X washing machines, the total revenue, R, in dollars, is given by the polynomial R=232.94x0.1x^2. What is the total revenue from the sale of
asked by Josie 
math
a kite with a string 150ft long makes an angle of 45 degree with the ground. assuming that the string is straight how high is the kite?
asked by Eymern 
Chem 1150
One tablespoon of peanut butter has a mass of 17g . It is combusted in a calorimeter whose heat capacity is 130kJ/∘C . The temperature of the calorimeter rises from 22.5∘C to 25.3∘C. Find the food caloric content of peanut butter.
asked by Sarah 
Chemistry 1150
Instant cold packs, often used to ice athletic injuries on the field, contain ammonium nitrate and water separated by a thin plastic divider. When the divider is broken, the ammonium nitrate dissolves according to the following endothermic reaction:
asked by Smith 
Algebra
Total revenue is the total amount of money taken in by a business. An appliance firm determines that when it sells X washing machines, the total revenue, R, in dollars, is given by the polynomial R=232.94x0.1x^2. What is the total revenue from the sale of
asked by Josie 
math
suppose x is a uniform random variable with c=40 and d=70. find the standard deviation of x
asked by sydney 
Statistics
The law of large numbers tells us what happens in the long run. Like many games of chance, the numbers racket has outcomes so variable  one threedigit number wins $600 and all others win nothing  that gamblers never reach "the long run." Even after many
asked by Ray 
english 4
Identify the infinitive phrase and its use. To win an argument is seldom a desirable goal.
asked by josh buchanan 
physics
A person of mass M lies on the floor doing leg raises. His leg is 0.85m long and pivots at the hip. Treat his legs (including feet) as uniform cylinders, with both legs comprising 34.5% of body mass, and the rest of his body as a uniform cylinder
asked by blake 
Finance
You want to save $200 a month for the next 24 years and hope to earn an average rate of return of 11 percent. How much more will you have at the end of the 24 years if you invest your money at the beginning of each month rather than the end of each month?
asked by Alec 
algebra
Solve the equation or formula for the indicated variable S=5rTf foRT answers are T=s/5r,, T=25r/s,, T=r25s,, T=s/5r2
asked by Tammy 
Statistics
The law of large numbers tells us what happens in the long run. Like many games of chance, the numbers racket has outcomes so variable  one threedigit number wins $600 and all others win nothing  that gamblers never reach "the long run." Even after many
asked by PLEASE HELP!!!!!!!!! 
physics
The pulley is light and frictionless. Find the mass M1, given that M2 (7.00 kg) is moving downwards and accelerates downwards at 3.01 m/s2, that θ is 15.0°, and that μk is 0.270.
asked by Laura 
English
Having trouble identifying subordinate clauses in the following sentences. 1. The airplane that we saw can land in only a few airports in this country. I think for this sentence the subordinate clause would be "that we saw." 2. The coin that I purchased is
asked by David 
Algebra
Okay, so I'm asked to "Complete the table for each function". 1. f(x) = x^2 x = 0, +/1, +/2, +/3 y = 0, 1, 4, 9 So, I plugged each of the x values into the equation and got the y values that are shown above? Are those correct, or did I do something
asked by Student 
science
which of the following body systems does NOT rely on the autonomic nervous system to stimulate involuntary events? A. Skeletal System B. Digestive System C. Circulatory System D. Respiratory System
asked by hi 
English
True or False: Never discuss an argument's implications. Comment only on the paper's explicit content. I think true is the answer.
asked by Taylor Beach 
chemistry
what is the correct name for k2o
asked by Johnny 
Physics
Consider the earth following its nearly circular orbit (dashed curve) about the sun.(Figure 2) The earth has mass mearth=5.98×1024kg and the sun has mass msun=1.99×1030kg. They are separated, center to center, by r=93millionmiles=150millionkm. What is
asked by Mary 
College Chemistry
The density of a 0.0122 M KMnO4 is 1.037 g/mL. Suppose 26.35 g of 0.0122 M KMnO4 are required to titrate 1.072 g of a household H2O2 solution. a)Calculate the mL of MnO4^ added to reach the endpoint. b)Calculate the moles of MnO4^ added to reach the
asked by Kelsey 
CHEMISTRY  SCIENCE
What is the molality of a solution of 50g of I2 (iodine) dissolved in 130 mL of propane. Propane density .49g/mol.
asked by chevy 
math
mollly uses 192 beads to make a necklace and a bracelet. it takes 5 times as many beads to make a necklace than it does to make a bracelet. How many beads are used to make the necklace?
asked by John 
maths
There are 6 terms in an A.P. 6th term is 3 times the second term and 4th term is 4 times the first term. if the 5th term is 15 find the terms
asked by jennifer 
Math
A carousel at Playland, contains 38 horses. each carousel ride takes 4 minutes, riders need 3 minutes to exit and newcomber require 3 minutes to pick a horse and hop on. A carousel ride costs $0.75. The carousel makes $88,239.00 a year. How many horses are
asked by John 
Math
Long distance Phone Company A charges a base rate of $5.00 per month plus 4 cents a minute that you're on the phone. Long distance Phone Company B charges a base rate of only $2.00 per month but they charge 10 cents per minute used. How much time per month
asked by Adina 
agric
importance of carbon dioxide and importance of ammonia
asked by masaka cindy 
Anne Frank  Quick Question
1)Briefly explain Anne’s relationship with her parents. How is her relationship with her father different from her relationship with her mother? What does each relationship tell you about Anne, her values, and her needs? It's not an essay just a brief
asked by dark1 
physics
An accelerometer is a device that uses the extension of a spring to measure acceleration in terms of Earth's gravitational acceleration (g). What is the approximate acceleration if this accelerometer spring is extended just 0.43 centimeters?
asked by Anonymous 
NavierStokes eq
Obtain the governing equation for a viscous unidirectional flow in a circular pipe. Use the navierstokes equations and employ the cylindrical coordinates. direction of the flow: z cylinder radius: r angle: a
asked by Hydro 
algebra
Is the following inequality always,sometimes,never,true,2(8x4)2 x
asked by jim 
Chemistry
Calculate [OH−] for 1.90mL of 0.190M NaOH diluted to 1.50L .
asked by JJ 
algebra
Solve the inequality graph solution 8 x+3/41/2, 5/32
asked by barb 
Chemistry
Possible Sources of error in a reaction or sodium bicarbonate and acetic acid. Also known as baking soda and vinegar.
asked by Grace 
math
Im confused on how to solve this question,please help.Meryl spends a total of $68.82 for 2 pairs of sneakers with same cost.sales tax is $5.32.she also uses a coupon for $3.00 off her purchase.How much does each pair of sneakers cost?
asked by zion 
Finance
Karl can afford car payments of $235 a month for 48 months. The bank will lend him money to buy a car at 7.75 percent interest. How much money can he afford to borrow?
asked by Alec 
Geometry A
Which line has a slope of 3 and passes though the point (6, 4)?
asked by Sidney 
science
whats is a structure that was built with keeping costs low as the primary concern?
asked by Dennis 
math
Help solving one more question please!Mason spent $15.85 for 3 notebooks and 2 boxes of markers.The boxes of markers cost $3.95 each,and the sales tax was $1.23.he also used a coupon for $0.75 off his purchase.If each notebook had same cost,how much did
asked by zion 
Physics
A wooden block of mass m = 2.3 kg starts from rest on an inclined plane sloped at an angle 26 degrees from the horizontal. The block is originally located 1.9 m from the bottom of the plane. Assume the inclined plane is friction less. 1)What is the
asked by Sydney 
Stats
The number of failures of a testing instrument from contamination particles on the product is a Poisson random variable with a mean of 0.028 failure per hour. (a) What is the probability that the instrument does not fail in an 8hour shift? (b) What is the
asked by Ashley 
Science
whats is a structure that was built with keeping costs low as the primary concern?Also, what is a structure (with the same function as the one above) that was built with no regard to cost: What are the difference between the two?
asked by Dennis 
Social Studies
Please help me with the following question: The American Revolutionary War could not have been won without foreign aid. True False I think it is True, but I am not sure it that is correct. Please help, and I will appreciate it. Thank you for any help.
asked by Brady 
English
My instructions are to choose the sentence that has the prepositional phrase underlined." part underlined" 1. I didn't want "to trust" her at the beginning. 2. The house "on the hill" was completely destroyed by fire. 3. In the early evening, the moon
asked by Mike 
finance
Texas Wildcatters Inc. (TWI) is in the business of finding and developing oil properties, and then selling the successful ones to major oil refining companies. TWI is now considering a new potential field, and its geologists have developed the following
asked by christian 
Math
find the volume of a square pyramid with a base length of 9 cm and a height of 4 cm: a. 324 cm b. 108 cm c. 36 cm d. 152 cm Please help!!
asked by #1Student 
History Help!
What arguments did supporters of the public school movement make to support their cause? can you help me find some sources to search up this answer..??
asked by Angela 
Math
The weights of male babies less than 2 months old in the United States is normally distributed with a mean of 11.5 pounds and a standard deviation of 2.7 pounds. How do I find the 80th percentile for these weights?
asked by Jeri Jackson 
Physics Please help!
If it requires 5.5J of work to stretch a particular spring by 2.3cm from its equilibrium length, how much more work will be required to stretch it an additional 4.5cm ? Express your answer using two significant figures. W=_____ J?
asked by ALI 
Chemistry
3.a solution has 64 grams of HI dissolved in 250 L of water. what is its [H+] 4. What is the pH of the solution in question #3? 5. A solution has 189 grams of HNO3 dissolved in 1000 L of water. What is pH?
asked by Emma 
Statistics
The weights of male babies less than 2 months old in the United States is normally distributed with a mean of 11.5 pounds and a standard deviation of 2.7 pounds. Find the 80th percentile score for these weights. I don't have a table, I have to figure it
asked by Jeri Jackson 
algebra
Solve the inequality graph solution 5r+4
asked by Tammy 
physics
A 1,160N crate is being pushed across a level floor at a constant speed by a force vector F of 310 N at an angle of 20.0° below the horizontal, as shown in the figure (a) below.
asked by Anonymous 
English
I will never forget the first time I "have gone" to the ocean with my family. My brother and I "were" five and seven years old. My parents took us on the Ferris wheel on the pier and "are buying" us popcorn and cotton candy. A shell I got from a souvenir
asked by Anonymous 
Math
Victoria wants to plant a vegetable garden in the shape of a square. She has a space allocated in her backyard that will accommodate 175 square feet. Using the drawing below, use the FOIL method to find the polynomial that represents the area of the
asked by Teresa 
Algebra II
Suppose that the profit, p, for selling bumper stickers is given by p(x) = 0.1x2 + 8x  50. What is the minimum number of bumper stickers that must be sold to make a profit? a. 6 c. 10 b. 2 d. 15
asked by Rachel 
history
what was good and not good about andrew jackson's political ideas?
asked by julie 
English
To your question Which of these clauses cannot stand alone? The hummingbird is the only bird that can fly backward, I would say "that can fly backward" cannot stand alone.
asked by David 
algebra
Solve the compound inequality graph solution 6x410
asked by Tammy 
math
You are a member of your high school track team and you specialize as a longdistance runner. Your event is the 1500meter run, also known as the metric mile, which you run at a constant rate. During one particular 1500meter race you are 1200 meters from
asked by Anonymous 
5th grade math
sue and dave shared 1/3 pound of cherries equally. What fractional part of a pound did each get? Molly wrote the following equation to solve the problem: (2 divided by 1/3) 2/1/3=n. Do you agree with Molly's equation? support your answer with information
asked by sara 
physics
A 0.349 kg particle slides around a horizontal track. The track has a smooth, vertical outer wall forming a circle with a radius of 1.68 m. The particle is given an initial speed of 8.66 m/s. After one revolution, its speed has dropped to 6.05 m/s because
asked by Jake 
physics
A block rests on a horizontal frictionless surface. A string is attached to the block, and is pulled with a force of 60.0 N at an angle θ above the horizontal. After the block is pulled through a distance of 2.00 m, its speed is 2.70 m/s, and 43.0 J of
asked by Jake 
English
True or false: Your main job as a peer reviewer is to imagine what your teacher would say and to imitate his or her language?
asked by Taylor Beach 
English
Can you help me identify the subordinate clause in the sentence The camel is the only pack animal that can stand the test of the Sahara. Would the subordinate clause be "than can stand the test of the Sahara?"
asked by David 
Math
Need help with a few: Perform the indicated operation. Write your answer in simplest form: 45 / 203
asked by James 
English
Read the passage. Choose the best way to rewrite the words in quotes. If the words are already correct, select "no change." Do you know what you "wanted" to become when you grow up? In the past, I "think" I "wished" to be a psychologist. I still "am
asked by Anonymous 
English
True or False: When doing peer review, you don't have to worry much about technical terms. Your classmates will know what you mean.
asked by Taylor Beach 
English
True or Fasle: Try not to use formulaic language. Strive for originality in your commentary.
asked by Taylor Beach 
social studies(updated answers)
mrs.sue i never got to put my updated answers from when you said they were wrong so here they are please check them. 5.Mexico City was built by the A.Olmecs, when they began to grow maize. B.Maya, after they conquered the Valley of Mexico. C.Spanish, on
asked by bonn 
English
True or False: Never discuss an argument's implications. Comment only on the paper's explicit content.
asked by Taylor Beach 
probability
a teacher on her way to work passes through 3 stoplights each morning. the distances between the stop lights are great and the lights operate independently of each other. if the probability of the red lights are .4,.8 and .6 for each light, what is the
asked by Lindsey 
chemistry
what is the solidification for water?
asked by khasan 
Math
Need help with this problem: Isolate the variable: 4(2x  7) = 36
asked by James 
social studies(updated answers)
8.Which region of Mexico is best for growing crops? A.Baja California B.Southern Mexico Plateau (I PICK THIS) C.Yucatán D.Northwestern Mexico 9.Like the United States, the government of Mexico is A.breaking away from a oneparty system. B.an established
asked by bonn 
chemistry
how much energy is released to the environment by 50.0 grams of condensing water vapor?
asked by khasan 
English
Hello. I'll be very grateful if you help me with a few questions. 1)I know that the sentence "Why are you always late" correct, but is it possible to say "Why are you always being late" to show that it happens very often? 2)Do you think it's possible to
asked by Nalmi 
astronomy
Your "weight" on Earth is a measure of the gravitational force between you and the Earth. What would your "weight" be on Mars? Mars has half the radius of Earth, and onetenth the mass of Earth. Therefore your weight on Mars would be
asked by koko 
Science
Calculate the temperature found when 10kg of water at 100°C is mixed with 20kg of water at 40°C.
asked by Ebenezer 
Chemistry
Ascorbic acid (vitamin C) is a diprotic acid having the formula H2C6H6O6. A sample of a vitamin supplement was analyzed by titrating a 0.3252 g sample dissolved in water with 0.0284 M NaOH. A volume of 13.27 mL of the base was required to completely
asked by Anonymous 
Chemistry
The problem asked to find the amount (in moles) of reactant left. .223moles FeS and .652moles of HCl FeS+2HCl> FeCl2+H2S .223molFeS(1moleFeCl2/1moleFeS)=.223moleFeCl2 .652molHCl(1moleFeCl2/2molHCl)=.326moleFeCl2 .223/.326x100=68.4% used HCL
asked by G.C. 
algebra
find zeros of a polynomial function
asked by alverta 
math
Triangle ADE is proportional to Triangle ABC. The Length of DE is 20 Ft: the Length of AB is 6 ft. and the Length of BC is 8 Ft. What is the length of AD?
asked by Anonymous 
geometry
Construct trapezium ABCD so that BC equals 6cm,AB equals 3cm,Angle B equals 80degrees and angle C equals 70 degrees.measure BD
asked by iyabo 
andrew jackson
how was andrew jackson a good president?
asked by julie 
Art Check Answers Please
1. Alexander Calder invented this type of art. fiber art mobiles ******** stabiles public art 2. Today, decisions in planning, selecting, and/or creating an artwork for public display are made in the following way. They are the decision of the artist. by
asked by Wendy 
English
Fossil Flitting, flickering, flashing black, white, and a note of red passes beneath trees that were already old at the end of the Civil War. The lovely departed species announces its fearless refusal to cease to be. And as we stand in the awe of life's
asked by Anonymous 
physics
A 1.761 km car is moving down a road with a slope (grade) of 12% at a constant direction and magnitude of the frictional force? Please show step by step if possible, I am extremely lost! Thanks!
asked by Nicole 
Chemistry
Ascorbic acid (vitamin C) is a diprotic acid having the formula H2C6H6O6. A sample of a vitamin supplement was analyzed by titrating a 0.3252 g sample dissolved in water with 0.0284 M NaOH. A volume of 13.27 mL of the base was required to completely
asked by PM 
Science
What are the types of positiontime graphs? I really do not know the types. I have a problem that has a part that wants me to tell which graph the problem uses. Also, they didn't really talk about the types of graphs in the lesson. Please help, and will
asked by Brady 
business
what is the interest earned for a deposit of $100,000 at 2% for 5 years
asked by john burien 
physics 111
a 50kg boy suspends himself from a point on a rope tied horizontally between two vertical poles.the two segments of the rope are then inclined at angle 30 degrees and 60degrees to the horizontal.the tensions in the segments of the rope is?
asked by Anonymous 
Physics 130
you push a 15kg cart with a force of 20N, 30 degrees below the horizontal. what is the normal force? Please help test tomorrow.
asked by Robert 
physics
A 0.272 kg coffee mug rests on a table top 0.71 m above the floor. What is the potential energy of the mug with respect to the floor?
asked by Anonymous 
Physics
If the gravitational force on you is 670N on the earth, how strong is the gravitational force on you on the surface of a neutron star that has the same mass as our sun and a diameter of 20.0km ? Take the mass of the sun to be ms = 1.99×1030kg , the
asked by Kaleb 
Statistics
The law of large numbers tells us what happens in the long run. Like many games of chance, the numbers racket has outcomes so variable  one threedigit number wins $600 and all others win nothing  that gamblers never reach "the long run." Even after many
asked by Ray 
English
Back from Extinction In 2004, two biologists were canoeing in a remote part of Arkansas. They were searching for a bird that local people said was there. As the men floated along, they listened for a bird call neither had ever heard before. Then a
asked by Anonymous 
Math
When the sum of all the positive even numbers is 420, find the largest even number in the sequence.
asked by kyle 
Math
Help Please! The LCM of two numbers is 60. The GCF of the numbers is 5. One number is 5 more than the other. The numbers are________ and __________ Please help clueless in Massachusetts
asked by Lance 
math
27 15 divided by 3
asked by Chyna 
math
2[7]  9
asked by Chyna 
Math
213c if c=7
asked by Chyna 
math
4p+6 if p =1 1/2
asked by Chyna 
behavioral statistics
How could you use standard scores and the standard distribution to compare the reading scores of two students receiving special reading resource help and one student in a standard classroom who does not get special help?
asked by michelle 
english project
What is the positive effects of blood plasma bags or blood banks. What is the size of one and what material is it made from. Impacts on the environmentthe posirive and negative effects
asked by sherianna 
math
3 [7]+ 2 7
asked by Chyna 
Chemistry
The problem asked to find the amount (in moles) of reactant left. .223moles FeS and .652moles of HCl FeS+2HCl> FeCl2+H2S .223molFeS(1moleFeCl2/1moleFeS)=.223moleFeCl2 .652molHCl(1moleFeCl2/2molHCl)=.326moleFeCl2 .223/.326x100=68.4% used HCL
asked by G.C. 
Math
I have a similar problem The LCM of two numbers is 36. The GCF is 6. One number is 6 more than the other. The numbers are  and . If someone could show me how to do this one, I could figure out the other 5 I have to do (maybe) Thank you very
asked by Billy 
Chemistry
The problem asked to find the amount (in moles) of reactant left. .223moles FeS and .652moles of HCl FeS+2HCl> FeCl2+H2S .223molFeS(1moleFeCl2/1moleFeS)=.223moleFeCl2 .652molHCl(1moleFeCl2/2molHCl)=.326moleFeCl2 .223/.326x100=68.4% used HCL
asked by G.C. 
history
Which of the following is true of the Industrial Workers of the World (I.W.W.)? A. It was founded in Russia. B. It made business leaders create new methods to deal with labor issues. C. It had very little influence over the labor movement. [D. It was
asked by Kelly 
Physics
a car and a truck start from rest at the same instant with the car initially 50m behind the truck. The truck has a constant acceleration of 2m/s^2 and the car has a constant acceleration of 3m/s^2. The car overtakes the truck after how many seconds? At
asked by Sergio 
German Help Please....
I posted this earlier but the person who responded didn't speak fluent German  this is my first year can someone please check these and help me..... Choose the best answer. 1.) We like to eat. A.) Wir essen lieber. B.) Wir essen gern.******** C.) Wir
asked by Cassie 
Chemistry
Why is a blank solution used in absorption spectroscopy? I know it is to nullify the reflection, refraction, and diffraction that occurs, but if the blank solution was a dilute solution rather deionized water, how would the concentration of Cr(VI)in a
asked by Sandy 
physics
A force of 1.24 N pushes against an object with a mass of 0.16 kg for 4.00 min. The object does not move. What is the work done on the object by the force?
asked by Sam 
This is to Ms. Flowks
Ms. Fowlks, This is the site that I did my essay on. If you look, my user is ilikezackalot. I do not know how else to prove that this is my essay, over rock climbing. I used this site, to see if anyone would give me editorial feedback, thank you,
asked by ilikezackalot 
science
Vanadium has several oxidation states. write correct formulas for vanadium (iii) oxide and vanadium (v) oxide.
asked by jason 
science
Vanadium has several oxidation states. write correct formulas for vanadium oxide and vanadium oxide.
asked by jason 
chemistry
Is deltaH standard of TdeltaS standard more important in determining whether KHT will be soluble in water at a given temperature?
asked by Gracie 
Algebra
Solve for X.... [x/(x+314)]*100 = 42 I don't think I got the right answer. Can you possibly show the steps.
asked by chevy 
Algebra Readiness
sally bakes two cakes.the length of the square cake is 8 inches.how do you find the area and perimeter of the heart cake
asked by itzel 
math
50 students took a test. 24 received a better than average grade. What percent scored above the average?
asked by mary d. 
Is a blog a print media? yes or no?
Is a blog a print media? yes or no? I think yes it is.
asked by Abby 
English
correct the following sentence: elvis our cat play with his toy and then he played on the scratching post There are 6 errors but I could only find 5. Elvis, our cat played with his toy, and then he played on the scratching post.
asked by Jess 
statistics
Determining whether an individual's political affliation affects his or her overall satisfaction with the economy. For this assignment, use only subjects that declared themselves as Republicans or Democrats and leave out any subjects who declared
asked by joy 
math
write a recursive formula for 8,6,4,2,0 then find a14
asked by kiddy 
Science
How much 0.1 M KCl is needed to dissolve 10 gm of precipitate?
asked by Karim 
English
Which one is correct? Which one is an adjective? powerthirsting or powerthirtsty
asked by Anonymous 
English
These questions are from the article I posted about the woodpeckers. How would you describe the tone of the last section of the article? A. optimistic B. cautionary C. regretful D. elated B Which of the following sentences is an example of a hyperbole? A.
asked by Anonymous 
Physics
The students made it to the bottom with out a problem but added 400 kg for a total of 455 kg and slides for 12.2 s across the surface of a frozen lake. If the coefficient of kinetic friction between the kid and the ice is 0.071, what is the change in the
asked by Carlos 
Physics 130
A 20kg child slides down a long slide in a playground. She starts from rest at a height of 25m. When she is part way down the slide at a height of 10m, she is moving at 16m/s. Calculate the mechanical energy lost due to friction.
asked by Robert 
discrete math help please
1. for any sets X and Y, we define the symmetric difference X ∆Y by: X∆Y = (X  Y) ∪ (Y  X) = (X ∪ Y)  (X ∩ Y) Prove the following: for all sets A,B and C, if A  (B ∩ C) = ∅ then A C ⊆ B  for all sets A,B and C, if A ⊆ B ∪ C and B
asked by Mary 
Chemistry
When 10.00g of phosphorus is burned in O2(g) to form P4O10(s), enough heat is generated to raise the temperature of 2990g of water from 18.0 ∘C to 38.0 ∘C. Calculate the heat of formation of P4O10(s) under these conditions.
asked by John 
please help with math
There exist irrational numbers a and b so that a^b is rational. look at the numbers √2^√2 and (√2^√2)^√2 a) use similar idea to prove that there exists a rational number a and an irrational number b so that a^b is irrational b) prove that if
asked by excel 
world geography/geography
The forests of the Pacific Northwest are just one of the many different ______________ in the United States where many people work in the same industry. A. elevation regions
asked by Chelsea 
Science
Calculate the temperature found when 10kg of water at 100°C is mixed with 20kg of water at 40°C.
asked by Ebenezer 
Math
R&N is a new candy with magical (yet mathematical) properties. Not all candies are the same size. When removing the largest R&N from a new bag, the bag becomes 1/2 full; removing the second largest makes the bg 1/3 full; removing the third largest makes it
asked by John 
math
Another variety of R&Ns has a different set of magical (yet mathematical) properties. Remove exactly 4 candies and 1 additional candy appears in the bag. According to the package, a bag contains 50 candies. What is the maximum number of canies that this
asked by John 
Math
What is the maximum number of intersections that can be formed by n lines?
asked by John 
Math
John is designing a redwood deck. each board is 5 1/2 inches wide, and each will be placed parallel to one another. Should he use 3/16 inch, 1/4 inch, or 3/8 inch spacing between boards if he wants the deck to be as close as possible to, but not greater
asked by John 
math
A firm pays $1.75 for each copy of a magazine and sells each one for $2.50. There is a fixed monthly cost of $40 for printing the publication. If the firm wants to make $550 dollars next month, how many magazines do they have to sell? Write and solve an
asked by ciara 
MATH
MR CHEN WANTS TO BUY 27 BLUE PENS AND 35 RED PENS. THE PENS ARE SOLD IN PACKAGES OF 8.HOW MANY PACKAGES OF BLUE PENS MUST HE BUY WRITE AN EQUATION USING THE LETTER B FOR THE UNKNOWN AMOUNT. THEN SOLVE THE EQUATION.
asked by JAMIE THOMAS 
functions
What is the rule for input 0 output 1
asked by martin 
algebra 1
The rocket coaster has 15 cars, some that hold 4 people and some that hold 6 people. There is a room for 72 people altogether. How many 4 passenger cars are there? How many 6 passenger cars are there?
asked by Anonymous 
Math
R&N is a new candy with magical (yet mathematical) properties. Not all candies are the same size. When removing the largest R&N from a new bag, the bag becomes 1/2 full; removing the second largest makes the bg 1/3 full; removing the third largest makes it
asked by John 
Math
A company will make a cereal box with whole number dimensions and the volume of 100 cm³. If cardboard cost five cents per 100 cm² what is the least cost to make 100 boxes?
asked by Joy 
Math
Another variety of R&Ns has a different set of magical (yet mathematical) properties. Remove exactly 4 candies and 1 additional candy appears in the bag. According to the package, a bag contains 50 candies. What is the maximum number of canies that this
asked by John 
Math
On the first day of fishing season, 70% of the 125 people fishing caught fish. Find what percent of the people caught fish.
asked by Alexa Zimmerman 
math
The basketball team won 21 games. Thisbis 25% of the games they played. How many games did the team play?
asked by Alec 
chem
In the following balanced neutralization reaction equation, how many moles of HCl are required to completely neutralize 0.040 moles of NaOH? HCl + NaOH d NaCl + H2O
asked by michael 
nutrition
If a large amount of dietary sodium were consumed in one day, what effect would it have on the total body water level?
asked by magen 
math
A can of soda at 80°F is placed in a refrigerator that maintains a constant temperature of 37°F. The temperature T of the soda t minutes after it is placed in the refrigerator is given by T(t) = 37 + 43e−0.058t.
asked by rox 
Math
Dan's business makes $75,000 a year. He spends 6% of that on advertising. How much does he spend on advertising?
asked by loren 
Health
As mixeddoubles teammates in tennis, Kara and Tran are trying to devise their best strategy against an opponent that has two excellent servers but his physical fitness level is not as good as Kara and Trans. How can Kara and Tran use their superior
asked by Ben 
Math
a snake can grow up to 21 feet. This is 35% of its maximum length. What is the maximum length?
asked by Clark 
physics
A woman is riding a Jet Ski at a speed of 20 m/s and notices a seawall straight ahead. The farthest she can lean the craft in order to make a turn is 20°. This situation is like that of a car on a curve that is banked at an angle of 20°. If she tries to
asked by Anonymous 
Economics/Forecasting
If you anticipate that volume will increase at your clinics by 4% next year. Forecast visits for each clinic, and explain what assumptions underline your forecast. Can someone give me an example please not sure what it is asking.
asked by Lisa 
physics
The oxygen taken in by the body reacts with fats, carbohydrates, and protein, liberating energy internally at a rate of about 2.12×104 J /liter. If a 85.4 kg man requires 73.0 W of power even while sleeping, what is his rate of oxygen consumption?
asked by Chris 
Chemistry
One day at the fertilizer factory, your boss Mr. Haber comes to you with a problem. The process used by the factory to produce ammonia,the raw material for your fertilizer, is just not optimized. He would like to modify the conditions to achieve a better
asked by Elizabeth 
English
Are the following sentences correct? He said it was them who took it., It couldn't have been them., Elena and she tied for first place.
asked by Sue 
Math
There is a general rule that you should spend no more than 25% of your monthly income on your rent or mortgages. Additionally, there is a general rule that says your monthly mortgages payment on a house is approximate 1% of the original mortgage amount.
asked by Imelda 
Hiram Elementary School
Maniac Magee
asked by Blessing Adusei 
Maths
There were some boys and girls in the school hall at first. 40% of the boys and 10% of the girls left the school hall. As a result, 3/4 of the pupils remained in the school hall.There were 12 more girls than boys who remained in the school hall. how many
asked by SRI 
math
The tax on a purchase was $9.33. If the sales tax rate is 6%, how much was the purchase? Write and solve an equation.
asked by ciara 
Chemistry
How would I find the collision frequency factor with this information? Slope 8111.4 EA 74089.36 j/mol yint 24.897 1/T .003
asked by Matt 
physics
a 2250 kg car is traveling at 20 m/s to the west. the force required to stop the car at 7890 N to the east. How long will it take the car to stop? How far would the car move before stopping?
asked by Karen 
Science
Which one is longer mts (metretonnesecond) or km (kilometre)?
asked by Juanita 
math
the diameters of ball bearings produced in a manufacturing process can be described using a uniform distribution over the interval 6.5 tp 8.5 millimeters. what is the mean diameter of a ball bearings produced in this manufacturing process?
asked by sydney 
math
What is 1/8 written as another fraction
asked by tish 
maths
The ratio of the number of adults to the number of children in an event hall was 5:7. (a)After 60 adults and 84 children entered the event hall and no one left the event hall, what was the ratio of the number of adults to the number of children in the
asked by SRI 
algebra
Is the following inequality always,sometimes,never,true 2(8 x4)
asked by jim 
math
Kathy scored 9 points. that was 18% of her teams score. How many points did the team score?
asked by Karen 
algebra
Is the following always,sometimes,never,true,6+8x9=11x+143 x
asked by jim 
help i have no idea!!!!!!
No one is useless in this world ... who lightens the burden of it for any one else
asked by idk 
math
Mrs. Zimmerman spent $55 at the grocery store. 40% of that she spent on meat. How much did she spent on meat?
asked by ariana 
science
at what altitude the value of g becomes 3/4 of its value on the surface of earth ?
asked by aimen 
Math
Fine the distance between points P(5, 4) and Q(1, 2) I come up with d= 7.211 but im not sure if its right.
asked by Kylee 
MATH
1,020 students attended the homecoming game. If this 85% of the student body, how many students are there in all?
asked by jordan lambert 
English
Are these sentences correct? 1. I can run more quickly in my new shoes. 2. Where did you find them shoes? Which sentence has the correct prepositional phrase. 1. I didn't want to trust her at the beginning. 2. The house on the hill was completely destroyed
asked by Mike 
Physics
A 7.65 g bullet from a 9mm pistol has a velocity of 329.0 m/s. It strikes the 0.625 kg block of a ballistic pendulum and passes completely through the block. If the block rises through a distance h = 29.75 cm, what was the velocity of the bullet as it
asked by Anonymous 
statistics
Suppose a manufacturer claims that each familysize bag of pretzels sold weighs 12 ounces on average with a standard deviation of 0.8 ounces. A consumer's group decides to test this claim. If a simple random sample of 49 bags of pretzels gives a sample
asked by Ana 
math
The sanchez family soent 15 days at the seashore. 12 of the days were warm and sunny. What percent of their days were warm and sunny?
asked by sean mendoza 
English
Is this sentence correct? Between you and I, I think it's wrong.
asked by Iman 
CHEM
the number of nonbonding electrons exceeds the number of bonding electrons in the lewis structure of which of the following molecules? I am having a problem with the Lewis structures. HCN NH3 H2O please explain the structure thank you so much
asked by layla 
algebra
Solve the absolute value equation graph solution 23 x58=8 answers are x=1 5/6or x=5/6, x=1 or x=4 1/3, x=1 5/6or x=4 1/3, x=1 5/6or x=1 thank you
asked by barb 
math
36x+8x=9
asked by chuck 
English
Is this sentence correct? The woman for whom we gave the party was delighted.
asked by Iman 
algebra
The Parker’s are installing a wooden fence in their backyard. They have 330 feet of wood. The length can be no more than 90 feet. Write and solve an inequality to find the maximum width of the fence.
asked by ciara 
English
What are the infinitives in the sentence The only way to have a friend is to be one.
asked by Sue 
Science  Please check my answer
This is my problem: When Christy takes her pet dog for a walk, the dog walks at a very consistent pace of 0.45 m/s. There are 20.1 m between the front of Christy’s house to the nearest dog park. How far will Christy’s dog have walked toward the park
asked by Brady 
help i have no idea!!!!!! math
The Men's Warehouse has suites on sale for buy one full priced, get the second 40% discounted and the third 70% discounted. If a full priced suit costs $380, what should someone expect to pay for three suites? Amy has been saving for her high school
asked by idk 
grammar
I need to combine the following sentence pair. First, reduce the second sentence to a participial or n absolute phrase, changing the form of the verb if necessary. Then, insert the phrase into the first sentence. Be sure to place a participial phrase next
asked by Dale 
english
1.Virtual reality systems can be used to train pilots, doctors, and engineers. These systems are seen most often in video games. 2. a headmounted display is made of a headset with a screen for each eye. the display connects to a computer. 3. a tracking
asked by john 
physics
A jet flying at 138 m/s banks to make a horizontal circular turn. The radius of the turn is 3810 m, and the mass of the jet is 2.40 × 105 kg. Calculate the magnitude of the necessary lifting force.
asked by Anonymous 
physics
Cheetahs can sustain speeds of 25 m/s over short distances. One of their prey is Thomson's gazelle, with top speed about 22 m/s. If a 52kg cheetah running southward at top speed grabs and holds onto a 23kg gazelle running westward at 22 m/s, find the
asked by blake 
English
find the infinitive Adam, try to be on time in the morning.
asked by Sue 
Maths
Jennifer packed some beads into 3 bags labelled A,B,and C.Bag Ahad the most number of beads and Bag C had least.The difference in the number of beads between bag A and the other two bags were 51 and 108 respectively. Given that bag C contained 15% of the
asked by SRI 
Math
How long is the peanut to the nearest 1 and a half inch.don callejon math
asked by Anonymous 
math
The Men's Warehouse has suites on sale for buy one full priced, get the second 40% discounted and the third 70% discounted. If a full priced suit costs $380, what should someone expect to pay for three suites? Amy has been saving for her high school
asked by edu 
math
1.3m is what in millimeters
asked by Anonymous 
Statistics
A class survey in a large class for firstyear college students asked, "About how many minutes do you study on a typical weeknight?" The mean response of the 463 students was x = 118 minutes. Suppose that we know that the study time follows a Normal
asked by Ray 
physics
A 2.284 km car is moving down a road with a slope of 13% at a constant speed of 11 m/s. What is the direction and magnitude of the frictional force?
asked by Brandon 
Math/fractions
Ben played 4/7 hours in the yard before dinner after dinner he played for 5/7 more hour. How many total hours did he play?
asked by Brandi 
Math
Ruby and Marielle are working on a project. If ruby finishes 4/8 of the project and Marielle finishes 3/8 , how much of the project is left? Answer: 4/8_3/8= 1/8 The table below shows the amounts of some foods the averge American eats each year. Estimate
asked by NAwaf 
Statistics
The weights of male babies less than 2 months old in the United States is normally distributed with a mean of 11.5 pounds and a standard deviation of 2.7 pounds. Find the 80th percentile score for these weights.
asked by Jeri Jackson 
grammar
(which, what) is the most difficult subject for you? Ans  Which
asked by cee 
English
Hook: "When words fail, music speaks" Thesis: My favorite thing to do is listen to music. What could I make my transition sentence?
asked by Anonymous 
maths
i am a number on the hundreds chart. the sum of my digits is 9.my tens digit is 4. what number am i?
asked by tavaris 
math
On the first day of fishing season, 70% of the 125 people fishing caught fish. Find what percent of the people caught fish.
asked by keri smith 
Math
Give exact and approximate solutions to three decimal places. X^25x+3=0
asked by Pam 
Math
Solve the following for x X^2+14x+4=0
asked by Pam 
Physics
two cars of equal mass with equal speeds traveling perpendicular to one another collide completely in elastically. what percentage of the cars' total energy is lost in the collision?
asked by ritzi 
Algebra
Victoria wants to plant a vegetable garden in the shape of a square. She has a space allocated in her backyard that will accommodate 175 square feet. Using the drawing below, use the FOIL method to find the polynomial that represents the area of the
asked by Teresa 
Science
How are volcanoes formed?
asked by Unknown 
Statistics 101
A researcher plans to use a random sample of n= 500 families to estimate the mean monthly family incomefor a large population. a 99% confidence interval based on the sample would be _________ than 90% confidence interval.
asked by Deedy 
to ms. sue
walking to class, a cloudburst drenched chauncey fix grammar plase
asked by tamer 
English
What are the subordinate clause in these sentences? 1. Brett, who is a football star, is class president. 2. Bonnie, who is an artist, is also studying computer science. 3. The composer who wrote music comes form Germany. 4. My address book, which is
asked by Mike 
math comparing fractions
Can u put 4/8 and 2/3 and 1/6 in order from least to greatest ??
asked by jada 
English
Has anyone here read The Diary of Anne Frank?
asked by Anonymous 
English
Her father's book club "likes" Edgar Allen Poe. Is it supposed to be "likes" or "like?"
asked by Anonymous 
Social studies
the 18 amendment, when did it happen
asked by Jonathan 
L.A.
Which of the following details of Scene 1 of the Diary of Anne Frank shows it is a hideout? A. The small attic in the building is visible to people in the building. B. The rooms of the building are painted or covered with curtains. C. The windows of the
asked by Anonymous 
language
What type of sentence is this: "Skateboards are short, wide boards made of wood, plastic, or fiberglass." Would it be a simple sentence, compound sentence, complex sentance or a compoundcomplex? And what's the verb?
asked by makenzie 
maths
Small pizza Diameter = 15 cm Medium pizza Diameter = 30 cm I$ a medium pizza twice as large as a small pizza? Use calculations to support your answer. A medium plz can someone help me
asked by krissy 
Physics
Three vectors are given by: a=0i+oj+4.0k b=3.0i+3.0j+1.0k c=1.0i+2.0j+1.0k a) Find a(bxc) b) Find a(b+c)
asked by Robin 
math
fifteenfoot board is cut into 2 1/3 foot long pieces for a bookcase. After as many pieces are cut, how long is the remaining piece?
asked by Anonymous 
trig
an=(1)n+1/2n
asked by marvin 
chemistry
if a college student went into the lab and produced 45 grams of Na2CO3, what is percent yield of this trial?
asked by jin 
English
Which sentence is punctuated correctly? The contents of the box consisted of seven, longhaired kittens. Marilyn was a lively outgoing, girl. Most of the middle schoolers hang out at the old, cool ice cream shop on 23rd Street. Is it A or C?
asked by Anonymous 
English
Find the subordinate clause in the sentence The hummingbird is the only bird that can fly backward.
asked by David 
math
Ms. Jones bought 1 pound of banana chips for her 4 children. she want to give each of them equal amounts. Can you help her figure out how much she should give each of them.
asked by . Janae 
physics
Two spheres are mounted on identical horizontal springs and rest on a frictionless table, as in the drawing. When the spheres are uncharged, the spacing between them is 0.05 m, and the springs are unstrained. When each sphere has a charge of +1.6 £gC, the
asked by Anonymous 
English
Is it "watch a one of a kind performance" or "watch one of a kind performance" I thought it was the first one, while someone else thought the second. Thanks!
asked by Lucy 
History Help!
Jefferson and Madison opposed Hamilton’s economic plan because they believed the federal government should use only those powers explicitly granted by _______________. Its a fill in the blank and idk....
asked by Angela