Questions Asked on
October 26, 2014

chemistry
The reaction of 2.5 mol of O2 with 4.6 mol of C3H8 will produce ________ mol of H2O.
asked by Anonymous 
Calculus
The radius of a circle is increasing. At a certain instant, the rate of increase in the area of the circle is numerically equal to twice the rate of increase in its circumference. What is the radius of the circle at that instant? A. 1/2 B. 1 C. Sqrt 2 D. 2
asked by Anonymous 
English
Which of the following best explains the difference between informative and explanatory text? a. Informative provides readers a sense of why something happens, while explanatory tells the order in which something happened. b.Informative provides a reason
asked by Olamide 
Calculus
a hyperbola passing through (8,6) consists of all points whose distance from the origin is a constant more than its distance from the point (5,2). find the slope of the tangent line to the hyperbola at (8,6).
asked by Al 
Psychologic
Barbara Fredrickson suggests that, based on the pace of cellular renewal in the body, it tends to take around ________ to change a habit or make a lifestyle change. 1 week 2 weeks 3 months 9 months
asked by zxcv 
Chemistry
In the combustion of natural gas according to the equation CH4 + 2 O2 > CO2 +2 H20, how many grams of water are formed during the combustion of 0.264 mole of CH4?
asked by Andrew 
physics
A compact car, mass 730 kg, is moving at 1.00 ✕ 102 km/h toward the east. The driver of the compact car suddenly applies the brakes hard for 1.9 s. As a result, an average force of 4.8 ✕ 103 N is exerted on the car to slow it down. What is the momentum
asked by sarah 
chrmistry
In a chemical compound, would you expect an oxide ion to be joined with one atom of calcium or one atom of potassium? Why?
asked by Robert23 
math
Ashley recently opened a store which sells only natural ingredients. She wants to advertise her products by distributing bags of samples in her neighborhood. It takes one person 2 minutes to prepare one bag. How many hours will it take to prepare 900 bags
asked by Shohanur 
spelling
Information found in a typical word entry are a language of origin, correct pronunciation, a job, job description, list of relatives, synonyms, and (A) signs. (B) obituary. (C) proofreading marks. (D) capitalization.
asked by tiko 
Physics
A solid wood door, 90.0 cm wide by 2.00 m tall has a mass of 35.0 kg. It is open and at rest. A small 500g ball is thrown perpendicular to the door with a speed of 20.0 m/s and hits the door 60.0 cm from the hinged side. The ball rebounds with a speed of
asked by Anonymous 
Chemistry
Find the enthalpy change of the following reactions 2C+2H2O> CO2+CH4 Using the following reactions with their change in H values. C+H2O>CO+H2 H=+131.1kjmol1 Co+H2O>CO2+H2. H=41.2kjmol1 CH4+H2O>CO+3H2 H=15.3
asked by Anonymous 
Psychologic
According to research led by Sarina Saturn, which of the following is predicted by variations of a particular gene on the third chromosome, which influences oxytocin functioning? How well a person reads others’ emotions. How sensitive of a parent a
asked by zxcv 
Theories and issues in working with schoolage chi
The term distal supervision means A. supervision by a nonworking parent. B. a lack of supervision. C. selfsupervision. D. supervision from a distance. Is this answer C.
asked by Amanda 
math
P varies directly as the square root of q. P=8 when q =25 find p when q = 100
asked by Anonymous 
Theories and issues in working with schoolage chi
The traditional term latchkey children refers to A. children who know how to properly use house keys. B. children who are between the ages of six and twelve. C. the key that children carry to open their door latch. D. the ability to be left alone at home.
asked by Amanda 
Chemistry
A 10.0 gram sample of a mixture of CH4 and C2H4 reacts with oxygen at 25°C and 1 atm to product carbon dioxide gas and liquid water. If the reaction produces 520 kJ of heat, what is the mass percentage of CH4 in the mixture? PLEASE HELP! I do not know
asked by Michelle 
Spanish
Need help with rewriting the following sentences using the word at the end as the subject. Thanks!!! 1) Yo servi en salada de fruta. (Lupe) Lupe sirvio en salada de fruta. 2) La nina no pidio jugo de manzana. (nosotros) Nosotros no pidimos jugo de manzana.
asked by Trish 
chemistry
Li+Cl=>LiCl ionic bonding atoms valence electrons electron transfer from/ to each atom and ions formed in the product??
asked by Robert23 
Chemistry
Calculate the mass in grams of the undiluted bleach that was in the sample of bleach titrated. Given: Density of undiluted bleach unkown is 1.042 g/mL. 14.44 mL of .100 M Na2S2O3. .0537 grams of NaClO. Each sample should conain 1/5 of the original
asked by Kaitlin 
Psychologic
Steve Porges’ Polyvagal theory posits that the key role of the mammalian vagus nerve is to support human affiliation. Which of the statements below are consistent with scientific findings that Dacher discussed about the vagus nerve? People with stronger
asked by zxcv 
Psychologic
Dacher and Emiliana suggest that compassion can be defined as: The feeling a person has in the presence of ________, is coupled with an urge to ________. sadness, cry pain, escape anger, fight suffering, help
asked by zxcv 
chemistry
A 100 L flask contains a mixture of methane and argon gasses at 25 degree C . The mass of argon present is 228 g and the mole fraction of methane in the mixture is 0.650 . calculate the total kinetic energy of gaseous mixture
asked by mathew 
Theories and issues in working with schoolage chi
Which of the following is the most accurate statement about separation anxiety? A. Separation anxiety usually appears the age of two months. B. Separation anxiety is usually outgrown in infancy. C. Separation anxiety is an affliction that should be treated
asked by Amanda 
differential equation
in the theory of learning the rate at which the subject is memorized is assumed to be directly proportional to the amount left to be memorized. also the rate at which the subject is forgotten is directly proportional to the amount memorized in their time
asked by Anne 
Calculus
A 12ft ladder is leaning against a vertical wall when Jack begins pulling the foot of the ladder away from the wall at the rate of 0.5ft/s. What is the configuration of the ladder at the instant that the vertical speed of the top of the ladder equals the
asked by Zoe 
Psychologic
Which of the following is NOT a scientific finding related to apology? People who receive apologies report better psychological health. People who apologize to others report better psychological health. People who receive apologies are less forgiving.
asked by zxcv 
Theories and issues in working with schoolage chi
The term distal supervision means A. supervision by a nonworking parent. B. a lack of supervision. C. selfsupervision. D. supervision from a distance. Is this answer D.
asked by Amanda 
Chemistry
The combustion of propane and oxygen produces carbon dioxide and water. What mass of water is produced from the combustion of 10.4g of propane, C3H8
asked by Anonymous 
Physics
(a) A small mail bag is released from a helicopter that is descending steadily at 2.13 m/s. After 4.38 s, what is the speed of the mail bag? The acceleration of gravity is 9.8 m/s2 . (b) After the mailbag is dropped, the helicopter continues descending
asked by Nina 
Theories and issues in working with schoolage chi
The Americans with Disabilities Act prohibits child care centers from discriminating against children based on which of the following? A. Economic or social status B. Race, religion, or gender C. Hearing impairment, blindness, or learning disability D.
asked by Amanda 
chemistry
which unit is used to express the pressure of gas?
asked by Anonymous 
physics
A copper (Young's modulus 1.1 x 1011 N/m2) cylinder and a brass (Young's modulus 9.0 x 1010 N/m2) cylinder are stacked end to end, as in the drawing. Each cylinder has a radius of 0.14 cm. A compressive force of F = 4800 N is applied to the right end of
asked by Anonymous 
PHYSICS (VECTOR)
A plane is flying due South (270º) at 474.8 km/h. A wind blows from West to East (0°) at 46 km/h. Find the direction of the plane's travel. Report your answer in degrees from 0° as a reference.
asked by tay 
Algebra
Find the greatest integer value of b for which the expression 9x^3+4x^2+11x+7/x^2+bx+8 has a domain for all real numbers. Thank you!
asked by Trish Goal 
Java
NEED HELP! I would like to create a class for finding the voltages of 1, 2 or even 4 batteries. The Class can be called BatteryVoltage with a default voltage value of 1.5 (AA Battery) Must allow the user to find the total voltage of batteries when
asked by Jordan 
finance
Assume that Kish Inc. hired you as a consultant to help estimate its cost of capital. You have obtained the following data: D0 = $0.90; P0 = $30.00; and g = 7.00% (constant). Based on the DCF approach, what is the cost of equity from retained earnings?
asked by garrett 
Chemistry
In a constantpressure calorimeter, 60.0 mL of 0.310 M Ba(OH)2 was added to 60.0 mL of 0.620 M HCl. The reaction caused the temperature of the solution to rise from 22.19 °C to 26.41 °C. If the solution has the same density and specific heat as water,
asked by Kylee 
Chemistry
A student weights 1.700 g of succinic acid and dissolves it in water in a 250.0 mL volumetric flask. A 25.00 mL sample of this solution is withdrawn and placed in a 125 mL Erlenmeyer flask, to which 5 drops of the acidbase indicator phenolphthalein is
asked by Mary 
social studies
why did Deganawida think it was important to stop fighting?
asked by Anonymous 
social studies
what angered colonist who wanted to settle the Ohio river ?
asked by dashaun 
criminal justice
In regards to the Constitutional rights of the accused, what does the crime control model emphasize?
asked by Patiance 
social studies
How does repetion make you noticeable in a crowd?
asked by anomyous 
Clark Atlanta
Plants need carbon dioxide to produce energy. How many carbon are there in 10.0 g of carbon dioxide? this is what I have so far. 10.0g x 1mol/44.01CO2 = 227 mol CO2
asked by Ashley 
English
Do I use who or whom and why? 1. Are you ordering around? 2. Is ready with his or her report today?
asked by Kelley 
Physics
A 940 kg car moves along a horizontal road at speed v0 = 16.8 m/s. The road is wet, so the static friction coefficient between the tires and the road is only μs = 0.196 and the kinetic friction coefficient is even lower, μk = 0.1372. The acceleration of
asked by Sid 
Chemistry
explain how to convert 814.510 torr to atm
asked by EE 
Calculus
If r is positive and increasing, for what value of r is the rate of the increase of r^3 twelve times that of r? A. Cubed root 4 B. 2 C. Cubed root 12 D. 2 sqrt 3 E. 6
asked by Anonymous 
eng
how do i make this sentence to present tense ? "I opened my eyes to an unusual shake."
asked by sun 
MATH
A BICYCLE TRAVELS WITH EACH TURN OF ITS WHEELS IS ABOUT 3 1/67 TIMES THE TIRE DIAMETER. iF THE TIRES HAVE A DIAMETER OF 24 1/2 INCHES, HOW FAR DOES IT TRAVEL WITH EACH TURN OF THE WHEELS
asked by STARR 
Math
Can someone please check these problems? Thank you! Solve each equation for the indicated value. 1. ab=c, for a I got a=c+b 2. 4y+6x=12, for y I got y=3/2x+3
asked by Anonymous 
algebra 2
A 2mi cab ride costs $1.70. A 7mi cab ride costs $3.70. Find a linear equation that models cost c as a function of distance d. a. c = 0.53d + 0.90 b. c = 0.85d + 2.00 c. c = 0.40d + 0.90 d = 0.40c + 2.00
asked by nino 
Theories and issues in working with schoolage chi
To determine if you're good fit as a leader in schoolage settings, the characteristic(s) that you'll need to examine include personality, temperament, skills, and A. social class. B. knowledge. C. musicianship. D. financial history. A.
asked by Amanda 
math
all the seats in two sections of a movie theater are occupied. in one section there are 8 row with 18 seats in each row.
asked by Anonymous 
physic
A pig slides down a 29° incline in twice the time it would take to slide down a frictionless 29° incline. What is the coefficient of kinetic friction between the pig and the incline?
asked by Dina 
Theories and issues in working with schoolage chi
Children create _______ when they talk about certain kinds of information many times. A. motivations B. cultural schemas C. attitudes D. socialization strategies D.
asked by Amanda 
Theories and issues in working with schoolage chi
In Denmark, twenty percent of children aged 710 attend leisure homes, known in that country as A. fritidshjem. B. barunban. C. karubu katsud. D. crèches. A.
asked by Amanda 
Calculus
If f(x)=sinx and g(x)=cosx, then the set for all x for which f'(x)=g'(x) is: A. Pi/4 + k(pi) B. Pi/2 + k(pi) C. 3pi/4 +k(pi) D. Pi/2 + 2k(pi) E. 3pi/2 + 2k(pi)
asked by Anonymous 
chemistry
If you pass 10.0mL of a 50.0mL solution of [Co(en)2Cl2]Cl that has been reduced with Zn through a cation exchange column, you will obtain a solution that has three H+ ions for every Co3+ ion that was originally present in the sample. These H+ ions are
asked by xx 
eng
if i write a story about experiencing a plane crash, what would the conflict be?
asked by idk 
Geometry
In triangle ABD, AC is an altitude, measure of angle 1 = 7x + 9 and measure of angle 2 = 3x + 11. What is the measure of angle 1.
asked by Sarah 
chemistry
2.) If you pass 10.0mL of a 50.0mL solution of [Co(en)2Cl2]Cl that has been reduced with Zn through a cation exchange column, you will obtain a solution that has three H+ ions for every Co3+ ion that was originally present in the sample. These H+ ions are
asked by Anonymous 
chemistry
2.) If you pass 10.0mL of a 50.0mL solution of [Co(en)2Cl2]Cl that has been reduced with Zn through a cation exchange column, you will obtain a solution that has three H+ ions for every Co3+ ion that was originally present in the sample. These H+ ions are
asked by xx 
Calculus
Find al points where tangent lines to: (x^2+y^2)^(3/2) = sqrt(x^2+y^2) + x is either horizontal or vertical.
asked by Al 
physics
A 83 kg person is hanging off the edge of a cliff, holding a rope. A 101 kg person is on the top of the cliff holding the other end of the rope. Find the minimum coefficient of static friction that would prevent the 83 kg person from falling.
asked by Anonymous 
Theories and issues in working with schoolage chi
Lawrence Kohlberg created the preconventional, conventional, and postconventional levels in _______ development. A. physical B. social C. cognitive D. moral D.
asked by Amanda 
Physics(Science)
Waves on a 5.0 m rope travel at a speed of 92 m/s. If the tension in the rope is 497 N, what is the mass of the rope?
asked by AJ 
Theories and issues in working with schoolage chi
A child caregiver who is using the statement, "Say please," is practicing _______ socialization. A. external B. internal C. intentional D. unintentional C.
asked by Amanda 
Math
Your basketball team scored 4 fewer than twice as many points as the other team. a. Write and expression for the number of points your team scored. b. The other team scored 24 points. How many points did your team score? For a. I got t*24 so far, is it
asked by Zero 
Language
Write each group of sentences as one sentence. Use (and) or (or) to join the predicates in each compound predicate. Add commas where needed. 1/ Architects discuss ideas. Architects draw plans. They work with owners. Answer: Architects discuss ideas,draw
asked by Nnh 
Algebra
Find the domain of srt(6xx^2. Thank you!
asked by Trish Goal 
Calculus
Let f(x)=(2x+1)^3 and let g be the inverse function of f. Given f(0)=1, what is the value of g'(1)? A. 2/27 B. 1/54 C. 1/27 D. 1/6 E. 6
asked by Anonymous 
Fractions Math
Fiona and camila took a load of peaches to the farmers market. During the first hour , they sold 1/2 of the peaches plus 1/2 of a peach. In the second hour, they sold 1/3 of the remaining peaches plus 1/3 of a peach. In the third hour , they sold 1/4 of
asked by Anonymous 
physics
A 1300kg car moving north at 27.0 m/s is struck by a 2165kg car moving east at 17.0 m/s. The cars are stuck together. How fast and in what direction do they move immediately after the collision?
asked by sarah 
algebra
Let A(t)32t^2+4^t. Find A(2)A(1)Thank you!
asked by Trish Goal 
Calculus 1
A right triangle has a fixed base of length 6 meters and a height that is increasing at a rate of 2 meters/second. At what rate is the length of the hypotenuse increasing when the height is 8 meters?
asked by Ben 
physics
1 An elevator, when fully loaded, has a mass of 5500 kg. The elevator needs to accelerate anywhere from 2.7 m/s^2 [D] to 2.7 m/s^2 [U]. What is the maximum tension force that the elevator cable will need to support during normal use? can we use fnet
asked by Anonymous 
Algebra
Let f(x)3x7/x+1. Find the range of f. Give your answer as an interval. Please enter your response in interval notation. I figured out the domain, ( inf,1) and (1, inf) .
asked by Trish Goal 
Physics
A 15 kg sled experiences an applied force of 5.5 N [north] and an opposing frictional force of 2.5 N [south]. If the sled starts from rest, what will be the velocity of the sled after 4.0 s?
asked by Matthew 
English
Hi, I was wondering if this sentence has a comma splice? Before they get cold, grab that fluffy and heated towel, and dry them. Thanks in advance!
asked by Alice 
calculus
a. find an equation for the secant line through the points where x has the given values. b. find a equation for the line tangent to the curve when x has the first value. y=9square root(x); x=16, x=25
asked by Duane 
Fractions
Fiona and camila took a load of peaches to the farmers market. During the first hour , they sold 1/2 of the peaches plus 1/2 of a peach. In the second hour, they sold 1/3 of the remaining peaches plus 1/3 of a peach. In the third hour , they sold 1/4 of
asked by Jessica 
Langauge
Underline the complete compound predicate. Circle the verbs.. 1/ Millworkers peel logs or cut boards. Complete pradicate: peel logs or cut boards. Verb: peel 2/ truckers load the boards and deliver them. C.p: load the board and deliver them. V.: load 3/
asked by Nnh 
Physics
While following the directions on a treasure map, a pirate walks 49.7 m north, then turns and walks 4.1 m east. What is the magnitude of the single straightline displacement that the pirate could have taken to reach the treasure?
asked by Elizabeth 
calculus
Find the length and width of a rectangle that has the given area and a minimum perimeter. Area: 8A square centimeters
asked by liz 
Theories and issues in working with schoolage chi
Which of the following is at the base of the quality pyramid? A. Procedures B. Health C. Safety D. Environment D.
asked by Amanda 
Theories and issues in working with schoolage chi
If relative care is not an option for a family, a livein solution may be care by a A. teenager. B. peer. C. Nanny D. Neighbor C.
asked by Amanda 
Calculus
Use the fourstep process to find the slope of the tangent line to the graph of the function at the given point and determine an equation of the tangent line. f(x) = 2x22x+1 (1, 2)
asked by Duane 
calculus
A 6 foot tall man walks at a rate of 5 feet per second along one edge of a road that is 30 feet wide. On the other edge of the road is a light atop a pole 18 feet high. How fast is the length of the man's shadow increasing when he is 40 feet beyond the
asked by Bryce 
physics
A person is kayaking in the ocean at 5.6 m/s 75° to the horizon when he experiences a current of 3.8 m/s 45° south of west. What is the speed and direction of his kayak?
asked by John 
Fractions
Fiona and camila took a load of peaches to the farmers market. During the first hour , they sold 1/2 of the peaches plus 1/2 of a peach. In the second hour, they sold 1/3 of the remaining peaches plus 1/3 of a peach. In the third hour , they sold 1/4 of
asked by Natalie 
French
Is it grammatically correct to say "Un prof enseigne les/des élèves"?
asked by Anonymous 
Theories and issues in working with schoolage chi
Parents, peers, media, teachers, and religious leaders are all examples of A. agents of socialization. B. moral virtue. C. recipients of socialization. D. internalized conversation B.
asked by Amanda 
Calculus
If y=sqrt (x^2+16), then d^2y/dx^2= A. 1 / (4(x^2+16)^3/2) B. 4(3x^2+16) C. x / ((x^2+16)^1/2) D. (2x^2+16) / ((x^2+16)^3/2) E. 16 / ((x^2+16)^3/2)
asked by Anonymous 
Calculas
find the tangent line of the following function Y=2sinx + sinx^2 at the points Pi/6,5/4
asked by Bashar 
Chemistry
Calculate the molarity of the H3PO4 solution?This the question Answer has to be: MH3PO4 = ? mol/L but I don't know how to calculate it. Thanks for help so far
asked by Duke 
Philosophy Intro to Logic
I have to write an argument in standard form before writing an essay on it. I'm using an article written by Jenny Price on news.wisc titled "Facebook profiles raise users' selfesteem and affect behavior" And here's what I have for the standard form, I
asked by Nicole 
physics
The position of a toy locomotive moving on a straight track along the xaxis is given by the equation x = t4 − 6 t2 + 9 t , where x is in meters and t is in seconds. The net force on the locomotive is equal to zero when t is equal to
asked by Anonymous 
AP Calc. AB
If f and g are functions such that f(g(x))=g(f(x))=x for all x in their domains, and if f(a)=b and f'(a)=c, then g'(b) =? a) g'(a)=1/c b) g'(b)=1/c c) g'(b)=1/c d) g'(b)=1/a e) g'(a)=1/c
asked by Rachel 
algebra
24 increased by y
asked by Bobbie 
Economics
EconMacro4 Chapter 9 Aggregate Expenditures and Demand 7. A. What are the components of aggregate expenditure? Page 148 Add to the consumption function, investment, government purchases and net exports (C + I + G + (XM). B. In the model developed in this
asked by Carolyn 
Math
Liz uses 19 connecting cubes to make a model of house. The house model is in the shape of a rectangle and is one cube high. How many different ways could Liz make the model of the house?
asked by Nikhil 
english
I got a question regarding my homework. The task is to find the mistakes in a given text but the last sentence confuses me so much that I lost the overview. I'll copy the sentence below and hope that someone can help me. "But to protect against children
asked by Leonie 
Physics
A figure skater is spinning at a rate of 1.1 rev/s with her arms outstretched. She then draws her arms in to her chest, reducing her rotational inertia to 66% of its original value. What is her new rate of rotation?
asked by Katie 
physics
A diving bell has a weight of 30000 N when measured on shore. In the water, suspended by a cable, the tension in the cable is only 12000 N. What is the buoyant force, FB, on the diving bell when it is in the water?
asked by tyler 
chemistry
Calculate the pH of 0,3g calcium hydroxide dissolved in water to give 500ml solution.
asked by lala 
Calculus
We are going to fence in a rectangular field and have a maximum of 200 feet of material to construct the fence. Determine the dimensions of the field that will enclose the maximum area?
asked by Fareed 
MATHS
Please help..urgently.. A charity collected 20 cent and 50 cent coins for a fund raising event in the ratio of 16:7. they collected 6912 20cent coins. how much money did they collect altogether?
asked by J.SARAH 
GRAMMAR
When a doctor dictates a punctuation mark, it is important to _____ transcribe the punctuation mark and not the word dictated check that the punctuation mark is correctly placed and transcribe the punctuation mark and not the word dictated check that the
asked by YVETTE 
math
the width of a rectangle is 4cm and the length is 8 cm if both the width and the length are increased by equal measures, the area of the rectangle is increased by 64 cm 2. find the length and width of the larger rectangle
asked by carl 
chemistry
A bicycle tire fitted was fitted with the air pressure of 75 psi at temperature 19 degree C riding the bike on a asphalt on a hot day increases temperature of the tire to 58 degree C. The volume increase by 4% . What is the new pressure
asked by mathew 
Calculus 1
Given f(x)= 3e^(1x^2)*ln(x), find the equation of the tangent line at x = 1.
asked by Ben 
Math algebra
its 45m from the center of a circular field to the inside edge of the track surrounding it. the distance from the center of the field to the outside edge is 55m. find the circumference of each edge.
asked by Amber 
physics
If an object is initially moving with a constant velocity of 20m/s towards positive xaxis and after 5 sec it changes its direction and moving at an angle of 30o with xaxis, find magnitude and direction of its acceleration.
asked by Anonymous 
GRAMMAR
Select the correctly punctuated phrases. Blood pressure 120/80, pulse 60, heart tones are normal. Blood pressure 120/80 pulse 60 heart tones are normal. Blood pressure 120/80, pulse 60 heart tones are normal.
asked by YVETTE 
physics
draw a particle model and a motion diagram for A bike travels at constant speed of 4.0 m/s for 4 s then slow down to come at rest in 3 s.
asked by sue 
Physical Chemistry
Please help, about real gas deviation from ideal behavior. when we plot graph against P and PV, at 17¡ãC,: for H2, there's straight ascending line. for N2, line a little curved at low P then become ascending straight like H2. for CO2, line curved, very
asked by Learner11 
Math
Assume a threemonth CD purchased for $3000 pays simple interest at an annual rate of 10%. What is the balance at maturity? I don't have any work. This is question one and I have 19 more. I don't understand how to arrive at the answer.
asked by Robyn 
Physics
A 1300kg car moving north at 27.0 m/s is struck by a 2165kg car moving east at 17.0 m/s. The cars are stuck together. How fast and in what direction do they move immediately after the collision?
asked by sarah 
Chemistry
A 5.00 mL sample of an aqueous solution of H3PO4 requires 43.2mL of 0.285M NaOH to convert all of the H3PO4 to Na2HPO4. The other product of the reaction is water. Calculate the molarity of the H3PO4 solution.
asked by Duke 
Financial Management
Calculate the present value of $25,000 to be received in 5 years, assuming an opportunity cost of 10%.
asked by kai 
Chemistry
define pressure how many mm Hg are in 875.1kPa
asked by tt 
Chemistry
Find the enthalpy change of the following reactions 2C+2H2O> CO2+CH4 Using the following reactions with their change in H values. C+H2O>CO+H2 H=+131.1kjmol1 Co+H2O>CO2+H2. H=41.2kjmol1 CH4+H2O>CO+3H2 H=15.3
asked by Anonymous 
physics
a student leaves home and walks 100 m in a northerly direction. he then walks in a direction of 45 degree north of east for 50 m to reach school. calculate the displacement graphically. choose a scale to draw the diagram
asked by sue 
AP World History
What are the effects of cultural diffusion in the Mediterranean? (I couldn't find the answer in my text book, the only thing I got was that the Mediterranean was able to adopt Greek culture.) Thank You Very Much!!
asked by Jessi 
chemistry
A compressed gas cylinder contains 1.00 into 1000 g argon gas . the pressure inside the cylinder is 2050 psi at a temp of 18 degree . how much gas remains in the cylinder if the pressure is decreased to 650 psi at a temperature of 26 degree of 26 degree c
asked by mathew 
science (Need FAST FEEDBACK!!!)
Is a density bottle the same as a pycnometer?
asked by Daniel 
Health
Is it possible under any type of medication （ex. Gastroscope ) to find out if someone has been on diet medicine? Why?
asked by Elizabeth 
algebra
A bank charges $3 each time you use an outofnetwork ATM. At the beginning of the month, you have $1500 in your bank account. You withdraw $60 from your bank account each time you use an outofnetwork ATM. Graph a linear equation that represents the
asked by tai 
math
frank is 3 times old as ken. frank is 15 years older than eileen, while ken is 1 year younger than eileen. What are thw ages of frank, ken and eileen?
asked by lauren 
physics
The system of blocks shown in the diagram below is being accelerated to the right at 4.4 m/s2 What is the applied force Small box mass 0.10 kg Big box mass  0.20 kg Acceleration  4.4 m/s2 Coefficient kinetic  0.35
asked by Sanda 
english
how can i describe a plane crash using imagery in first person point of view ?
asked by liam 
Calculus
Find al points where tangent lines to: (x^2+y^2)^(3/2) = sqrt(x^2+y^2) + x is either horizontal or vertical.
asked by Al 
Chemistry
what mass of precipitate will form if 1.5L of concentrated pb(clo3)2 is mixed with .55L of.190 M NaI
asked by Matt 
algebra
The cost y (in dollars) to provide food for guests at a dinner party is proportional to the number x of guests attending the party. IT costs $30 to provide food for 4 guests. a. Write an equation that represents the situation. b. Interpret the slope. c.
asked by tai 
chemistry
A molecule of sodium nitride would control how many sodium ions? Why?
asked by Robert23 
chemistry
Predict the number of atoms of each element that would be needed to form a molecule of cadmium sulfide?
asked by Robert23 
Algebra 1
Andrew is making a plan to complete a class math assignment. He has 48 problems to complete over 5 days. He decides to complete the assignment is such a way that his total number of completed problems doubles every day. He realizes that that number must be
asked by Halle 
French
How do you say "This is a form of exercise in French"?
asked by Anonymous 
Psychologic
Which of the following is most consistent with findings from research on how becoming a parent relates to happiness? There is an increase in parents' happiness levels just around the time of childbirth that gets larger for each successive child. There is
asked by zxcv 
math measurement
Jane has two pieces of ribbon.One piece is 10cm longer than the other.the total of the two pieces is 40cm.how long is the shorter piece?
asked by ella mae diaz 
Algebra
What is the range of the function f(x)=1/1x? Express your answer in interval notation. Thank you!
asked by Trish Goal 
Math
Find the exact interest on a loan of $32,400 at 7% annually for 30 days.
asked by Anonymous 
Physics
A ball is thrown horizontally from the top of a building 17.6 m high. The ball strikes the ground at a point 67.7 m from the base of the building. The acceleration of gravity is 9.8 m/s2. Find the time the ball is in motion
asked by Maurissa 
chemistry
To identify a diatomic gas (X2), a researcher carried out the following experiment: She weighed an empty 3.4L bulb, then filled it with the gas at 1.40atm and 25.0 ∘C and weighed it again. The difference in mass was 5.5g . Identify the gas.
asked by Anonymous 
English composition
I'm writing a paper to explain a concept of the bevel Ella Minnow Pea. I've come up with a thesis statement and my teacher has approved it, but I'm just stuck as to what I'm writing about. The assignment instructions asks "How does Dunn legitimize his
asked by Dylan 
Algebra
How many real numbers are not in the domain of the function f(x)=(1/x64)+(1/x^264)+(1/x^364)? Thank you!
asked by Trish Goal 
algebra
How many real numbers are not in the domain of the function f(x)=(1/x64)+(1/x^264)+(1/x^364)?
asked by Trish Goal 
chemistry
2.) If you pass 10.0mL of a 50.0mL solution of [Co(en)2Cl2]Cl that has been reduced with Zn through a cation exchange column, you will obtain a solution that has three H+ ions for every Co3+ ion that was originally present in the sample. These H+ ions are
asked by xx 
chemistry
If you pass 10.0mL of a 50.0mL solution of [Co(en)2Cl2]Cl that has been reduced with Zn through a cation exchange column, you will obtain a solution that has three H+ ions for every Co3+ ion that was originally present in the sample. These H+ ions are
asked by xx 
Math
Fiona and camila took a load of peaches to the farmers market. During the first hour , they sold 1/2 of the peaches plus 1/2 of a peach. In the second hour, they sold 1/3 of the remaining peaches plus 1/3 of a peach. In the third hour , they sold 1/4 of
asked by Jessica 
History
What is the central teaching of Islam?
asked by tai 
chemistry
If you pass 10.0mL of a 50.0mL solution of [Co(en)2Cl2]Cl that has been reduced with Zn through a cation exchange column, you will obtain a solution that has three H+ ions for every Co3+ ion that was originally present in the sample. These H+ ions are
asked by xx 
chemistry
2.) If you pass 10.0mL of a 50.0mL solution of [Co(en)2Cl2]Cl that has been reduced with Zn through a cation exchange column, you will obtain a solution that has three H+ ions for every Co3+ ion that was originally present in the sample. These H+ ions are
asked by xx 
Chemistry
explain how to 1kpa to atm
asked by EE 
Chemistry
1kpa to mmhg
asked by EE 
Theories and issues in working with schoolage chi
A child caregiver who is using the statement, "Say please," is practicing _______ socialization. A. external B. internal C. intentional D. unintentional C.
asked by Amanda 
Chem
When you are ready to record the total collected volume of hydrogen gas, it is only necessary to subtract the buret scale reading from 50.00, then add Vsmall subtract Vsmall from the buret scale reading record the buret scale reading add Vsmall to the
asked by GUGi 
Theories and issues in working with schoolage chi
Research suggests that every youngster should receive emotional support from at least three A. legal guardians. B. peers. C. school friends. D. nonparental adults. D.
asked by Amanda 
precalculus
Three friends want to share a circular 12inch pizza equally by exactly only two parallel cuts. How far from the center must the cuts be? Hint: The pizza is a circle of radius 6 inches.
asked by michael 
math problem
Adam, Sam, and Eddie have to meet their boss at 3:00 in the office 9 miles apart from their home, and they must be arrive in time for the appointment. Adam had a bicycle, Sam had a skateboard,and Harry had no transport. So they have to share. so they left
asked by victoria 
Theories and issues in working with schoolage chi
The stage described by Erik Erikson as most commonly seen in sevenyearold children is A. initiative vs. guilt. B. industry vs. inferiority. C. trust vs. mistrust. D. autonomy vs. shame and doubt. D.
asked by Amanda 
English.
can someone help me? What is this article about. Please help me summarize it so i can understand. Here is the title : Canadian military involvement in Afghanistan formally ends
asked by Sarah 
Chemistry
how to multiply 2.45 mol x 6.02x10^23
asked by Kim 
Mathematica
I am trying to write a matrix where n=100, and the matrix's first and last number is 2 and all the number in the middle are 1.
asked by Ashley 
Algebra
How many real numbers are not in the domain of the function f(x)=(1/x64)+(1/x^264)+(1/x^364)? Thank you!
asked by Trish Goal 
algebra
The function f(x) satisfies f(sqrt(x+1))=1/x for all x>= 1, x does not = 0. Find f(2)Thank you!
asked by Trish Goal 
Algebra
what is the domain of the function u(x)=1/sqrt(x)? Thank you!
asked by Trish Goal 
English
determination that you need to do something.....(definition of) will  What is the relationship between 'determination' and 'that you need to do something'? Are they in apposition?
asked by rfvv 
General Chemistry
We mix 112 grams of oxygen gas with 118 grams of argon gas in a volume of 1752 mL at 74 degrees celsius. What will be the final pressure of the gas mixture? First, I converted the grams into moles. 112g O2 * (1mol O2/ 32g O2) = 3.5 moles O2 118g Ar * (1mol
asked by Sabrina 
Algebra
Find all complex numbers such that z^2=2i. Thank you!
asked by Trish Goal 
CHEMISTRY
As you may well know, placing metal objects inside a microwave oven can generate sparks. Two of your friends are arguing over the cause of the sparking, with one stating that the microwaves "herd" electrons into "pointy" areas of the metal object, from
asked by KTM 
Theories and issues in working with schoolage chi
People who understand the characteristics of children at various ages are more likely to develop activities and experiences for them that are A. within time constraints. B. easy to do. C. developmentally appropriate. D. educational. D.
asked by Amanda 
Calculas
Use the derivative of sinx and cosx to develop the derivatives of y=secx and y=tanx? Help would be much appreciated
asked by Bashar 
Physics
Jeff’s basketball falls into a pond. There is no wind and the water is still. Jeff wants to get the ball. He throws a rock into the pond, which hits water at 2 ft behind the ball from Jeff’s view. What will happen to the ball?
asked by Sydney 
Theories and issues in working with schoolage chi
Which of the following exhibits adult supervision with full accountability? A. Inhome care or outofhome care in a center with a child and youth leader B. Sending a child to lessons or other youth groups to be looked after C. Selfcare for the child in
asked by Amanda 
Calculus
A sphere is increasing in volume at the rate of 3(pi) cm^3/sec. At what rate is the radius changing when the radius is 1/2 cm? The volume of a sphere is given by V=4/3(pi)r^3. A. pi cm/sec B. 3 cm/sec C. 2 cm/sec D. 1 cm/sec E. .5 cm/sec
asked by Anonymous 
Health
Is it possible under any type of medical examination（ex. Gastroscope ) to find out if someone has been on diet medicine? Why?
asked by Elizabeth 
Calculus
The graph of the equation x2 − xy + y2 = 9 is an ellipse. Find the lines tangent to this curve at the two points where it intersects the xaxis. Show that these lines are parallel.
asked by Al 
Math
10. Estimate 30% of the student population. You must show all of your work and provide an explanation. *There are 850 students.
asked by Ariana 
Chemistry
Element X consists of two major isotopes with the following percent abundances and atomic masses: 35.0% and 85.0 amu; and 65.0% and 84.0 amu. Calculate the average atomic mass of element X.
asked by Anonymous 
General Chemistry
If the pressure is 748 mmHg, and if h= 35mm, what is the pressure of the gas, expressed in atm, If the substance in the tube is oil having a density of 0.788 g/mL? The density of mercury is 13.6 g/mL.
asked by Sim 
algebra
What is the translation of 24 increased by y??
asked by Bobbie 
5th grade math problem
Adam, Sam, and Eddie have to meet their boss at 3:00 in the office 9 miles apart from their home, and they must be arrive in time for the appointment. Adam had a bicycle, Sam had a skateboard,and Harry had no transport. So they have to share. so they left
asked by victoria 
math
your recipe calls for 300 grams of chocolate .you have 200 grams .what fraction of chocolate do you have?
asked by Mary 
history
What changes occurred in agriculture, finance, and industry during the 18th century?
asked by loli 
physics
how much will the velocty of a car be in 24 seconds
asked by Anonymous 
mathematics
the lenght of a rectangle is twice its width.If the width is reduced by 1cm and the lenght is also reduced by 2cm,the area will be 15cm(square).Find the dimensions of the original rectangle.
asked by john 
Civics
Would someone be willing to check my quiz answers?
asked by Makenzie 
chemistry
Given that 1mole of propane react with 5 moles of Oxygen.find the number of moles of Oxygen reacted with 2.2g of propane
asked by Kealeboga 
n. i. o. s physics
How would you design a black body?
asked by physics 
Writing
In the other 6 groups there are 21 students in each of the 6 groups. *Does this sentence make sense.
asked by Ariana 
history
Who was the titan of industry, or the socalled robber baron, most closely associatedwith the railroad industry.
asked by angel 
physics
draw the following position vectors, find the displacement and present it on diagram. di=2 m df=5m di=3m df= 4m
asked by sue 
algebra
For the expression 4x7, what is the smallest whole number value for x that gives a result that is more than 150?
asked by mia 
algebra
The cost y (in dollars) to provide food for guests at a dinner party is proportional to the number x of guests attending the party. IT costs $30 to provide food for 4 guests. a. Write an equation that represents the situation. b. Interpret the slope. c.
asked by tai 
Algebra
Compute the domain of the realvalued !@#$%^&ntion f(x)=sqrt(1sqrt(2x). Thank you!
asked by Trish Goal 
Maths
The formula to calculate the distance he runs in the nth week
asked by Kgomotso 
math
KATHY has red balloons and blue balloons. She gives away 5 ballons. If she gives away 3 red ballons, how many blue ballons does she give away?
asked by Nikki 
Theories and issues in working with schoolage chi
Being able to balance one's checkbook is an example of a _______ skill. A. psychological B. physical fitness C. domestic D. social B.
asked by Amanda 
social studies/Ga history
Describe some positive and negative events of the trustee period, and provide your own evaluation of the rule of the trustees as either generally a success or a failure.
asked by kathy 
Theories and issues in working with schoolage chi
Which of the following is most likely to be a result of a schoolage child left unattended at home? A. Loss of friendships B. Obesity C. Psychological harm D. Inability to complete homework assignments C.
asked by Amanda 
calculus
for f(x)=5/8, a. find an equation for the secant line through points where x=4 and x=5.b. find an equation for the line tangent to the curve when x=4. I can solve part a., but I am confused on part b. please help. I don't understand how to plug the numbers
asked by Duane 
Chemistry
convert 58.8 atm to kPa
asked by EE 
help PLEASE math 112
Which has the greater effect on the surface area of a right circular cylinder  doubling the radius or doubling the height? how can I explain this
asked by Steven B 
PLEASE HELP! SCIENCE
The system of blocks shown in the diagram below is being accelerated to the right at 4.4 m/s2 What is the applied force Small box mass 0.10 kg Big box mass  0.20 kg Acceleration  4.4 m/s2 Coefficient kinetic  0.35
asked by Rosie