Friday
March 27, 2015

Posts by allison


Total # Posts: 478

Chemistry
Find the Density of xenon of STP
March 10, 2015

Chemistry
Find temperature of 20.0g of nitrogen that occupies volume of 500.0ml at pressure 0.45 bar.
March 10, 2015

chemistry
Find volume of carbon dioxide occupied by 1.0g of CO2 at 0 degrees Celsius and pressure 25.0 torr.
March 10, 2015

Chemistry
Find pressure exerted by 2.0g of helium enclosed in a 100.0 ml container at 25 degrees Celsius
March 10, 2015

Chemistry
you would be surprise what he actually leaves out.
March 10, 2015

Chemistry
Explain Why some ionic compounds are soluble in water. Explain why non-ionic compounds, such as ethanol or sugar are soluble in water. Explain what a saturated solution.
March 10, 2015

Chemistry
How to prepare 250ml of 0.2 M hydrochloric acid from 2.5 M hydrochloric acid.
March 10, 2015

chemistry
Find volume (in ml) of 0.3 M solution of sodium chloride containing exactly 3.0g of sodium chloride.
March 10, 2015

Chemistry
how to prepare 100.0 ml of 0.2 M solution of sodium hydroxide
March 10, 2015

Chemistry
A solution contains one or more of the following ions: silver, barium, and Copper (II). CY 105 student adds sodium chloride to a small sample of the solution of the unknown and a white precipitate is formed. He/she filters out the precipitate and then add sodium carbonate to ...
March 10, 2015

chemisty
find the oxidation state of a carbon in methane, carbon monoxide, carbon dioxide, CH2O, acetic acid, carbonic acid, methanol, and benzene (C6H6)
March 10, 2015

chemistry
I really need help working them out they all look different to me
March 10, 2015

chemistry
find the volume of 0.1 M hydrochloric acid required to react with 22.0ml of 0.07 M barium hydroxide
March 10, 2015

chemistry
find volume of 0.2 M sulfuric acid required to react with 15.0 ml of 0.25 M sodium hydroxide
March 10, 2015

chemistry
your not getting the picture I need help to study for an exam because I do not get this.
March 10, 2015

chemistry
find mass of magnesium nitride produced in reaction of 5.0of magnesium with 10.0gof nitrogen. the reaction was carried out in a closed container
March 10, 2015

chemistry
Find composition of post-reaction mixture if 10.0 g of sulfur and 20.0 g of iron were reacted in a closed container producing iron (II) sulfide.
March 10, 2015

chemistry
that is exactly how it is worded on the pretest we have to study by
March 10, 2015

chemistry
find composition of post-reaction mixture if 10.0g of sulfur and 20.0g of iron were reacted in a closed container producing iron (II) sulfide
March 10, 2015

chemistry
to be honest I don't understand any of it I have a foreign chemistry teacher and I am not getting any of it.
March 10, 2015

chemistry
find mass of sulfuric acid obtained in reaction of 20.0g if sulfur trioxide with excess of water
March 10, 2015

chemistry
find mass of calcium carbonate obtaqined in reaction of 10.0g of calcium oxide with an excess of carbon dioxide
March 10, 2015

Chemistry
Find the molarity of a sodium hydroxide solution obtained by dissolving 125.0 mg of sodium hydroxide in 50.ml volumetric flask.
March 10, 2015

Astronomy
The Hubble Space Telescope orbits at an altitude of 600 km above the Earth's surface. Assuming it is in a stable circular orbit, what is its velocity? For reference, the Earth's radius is 6400 km and Earth's mass is 6 x 10^24 kg. The formula to solve for circular ...
February 15, 2015

Math
Hello! Can you check my answers for these 4 worksheet questions? Thank you in advance (: 1. The following ordered pairs give the scores on two consecutive 15-point quizzes for a class of 18 students. (7, 13), (9, 7), (14, 14), (15, 15), (10, 15), (9, 7), (14, 11), (14, 15), (8...
January 28, 2015

Math / Algebra
Can you check my work? Thank you :) 1. The Domain of a function F is the same as the range of F^-1 (True or False?) Answer: True. 2. Does the function y = |x-2| have an inverse? Select the best answer. A. Yes, it passes the horizontal line test. B. No, it does not pass the ...
January 27, 2015

physics
An object has the following equation of motion (equation describing its position as a function of time). x(t) = x0 where x0 = −2.3 m. What is the object’s position at time t = 23 s? What is its velocity?
January 23, 2015

Physics
Station Math Two station astronauts will each perform two 8-hour EVAs within 13 days to repair a damaged solar panel that was impacted by a micrometeoroid on the space station. What is the total amount of oxygen needed by the two astronauts to accomplish this? Please put your ...
December 27, 2014

chemistry
write the mass number, atomic number,number of protons, neutrons,and electrons for He, Si, K+, N3-
December 16, 2014

chemistry
an ice cube has a mass of 4.3g and a mass of 5.0mL it is placed in a 30mL of oil that has a mass of 27 g will the ice cube float or sink in the oil
December 16, 2014

Chemistry
Complete the Bronsted- Lowry reaction, placing each product by its appropriate label. HCO3^-+HNO2 (double arrows) need a spot for acid and for base.
December 5, 2014

algebra
It grew 7.66 inches repeating every week.
November 17, 2014

physical science
780 J/s
November 6, 2014

math
20+10+9+7=46 There are 20 students in 9th Grade. 20/46=0.43478261 The percentage of students in the ninth grade riding the bus are 43%.
October 6, 2014

maths
by how much does the 3 in 34685 exceed the 3 in 23487
September 17, 2014

Math Help!
Those are the answers in my book. & Sorry! How about now? 1. C 2. A 3. D
May 21, 2014

Math Help!
1. D 2. B 3. C
May 21, 2014

Math Help!
1. Find the product. (2x)(10x) 20x 12x 20x^2 5x 2. -3m(m + 8) -3m^2 + 24 -3m^2 + 24m -24m^2 -4m + 5 3. 4d(2d - 9) 8d - 36d -d -28d^2 8d^2 - 36d
May 21, 2014

Math 2
So is the answer 1/12yard, if she has 1/4 yard of fabric, and cuts it into 3 equal pieces?
May 15, 2014

Math 2
Is the answer 1/12. 1/4 multiplied by 1/3 is how I got that. Is that correct?
May 15, 2014

Math 2
Ammeter has 1/4 of fabric. She cuts it into 3 equal pieces. What fraction of a yard is each piece of fabric?
May 15, 2014

Math 2
John solved 1/5 divided by 10 by using a related multiplication expression. Which multiplication expression did she solve? Choices are A. 5 *10 B. 1/5 *10. C. 5* 1/10 d. 1/5 *1/10
May 14, 2014

Statistics
A simple random sample of 27 adult mice has a length standard deviation of 0.66 mm. Using a 0.10 level of significance, does it appear that these mice come from a population with a length standard deviation of 0.87 mm?
April 27, 2014

Statistics
A simple random sample of 27 adult mice has a length standard deviation of 0.66 mm. Using a 0.10 level of significance, does it appear that these mice come from a population with a length standard deviation of 0.87 mm?
April 27, 2014

Statistics
18.3
April 27, 2014

Statistics
18.3% smoke
April 27, 2014

Statistics
What part? That's exactly how it's written on the homework
April 27, 2014

Statistics
One survey by the American Medical Association showed that among 785 randomly selected people who completed four years of college, 81.7% do not smoke. Use a 0.01 significance level to test the claim that people who completed four years of college are more likely to not smoke ...
April 27, 2014

math
How do you find the sum of the mode from each set of data? Set A: ( 4,9,7,2,4 ) Set B: ( 11,6,4,6,2 ) Set C: ( -3,2,9,-3,-3)
April 23, 2014

Chemistry
What mass of octane must be burned in order to liberate 5410 kJ of heat?
April 13, 2014

Math Help? Check my answers.
1. A spinner is divided into 10 equal sections numbered from 0 to 10. You spin the spinner once. What is P(divisible by 3)? 1/3 1/2 2/5 3/10** 2. A bag contains 7 green marbles, 9 red marbles, 10 orange marbles, 5 brown marbles, and 10 blue marbles. You choose a marble, ...
April 9, 2014

Physics
The figure(Figure 1) shows a solid metal sphere at the center of a hollow metal sphere. Assume that E=1.2×104N/C. What is the total charge on the exterior of the inner sphere?
March 11, 2014

Physics
An electric dipole is formed from two charges, ±q, spaced 1.00cm apart. The dipole is at the origin, oriented along the y-axis. The electric field strength at the point (x,y)=(0cm,10cm) is 320N/C . What is the charge q? Give your answer in nC. What is the electric field...
February 21, 2014

math
A rectangular fish pond is 21ft(squared) in area. If the owner can surround the pond with a 20 foot fence, what are the dimensions of the pond?
February 19, 2014

AP Chemistry
A solution is made by mixing exactly 500 mL of 0.167 M NaOH with exactly 500 mL of 0.100 M CH3COOH. Calculate the equilibrium concentrations of H+, CH3COOH, CH3COO-, OH-, and Na+.
February 16, 2014

Math
Kyle had 5/7 lb of birdseed.each bird feeder hold 1/5 lb of seed.can Kyle fill 5 bird feeders
February 5, 2014

physics
a wooding block of mass 7.6kg rest on a rough horizontal surface if the surface is 8N calculate the coefficient of friction
November 17, 2013

Chemistry
What is the theoretical yield of ethyl chloride in the reaction of 19.2g g of ethylene with 48g g of hydrogen chloride?
November 3, 2013

Water - Math Question
aw, guys someone help me please??
October 19, 2013

Water - Math Question
This question is related to water footprint calculation. I have no idea how to go about this, if anyone could point me in the right direction, I'd be forever grateful! Background info: The water footprint of the resident of a Blue Sea riparian country (92 million residents...
October 19, 2013

algebra 2
Teaneck High had an enrollment of 11050 in 1990 and an enrollment of 13390 in year 1998. What is the predicted enrollment of Teaneck High in 2018 if we assume a linear model?
August 24, 2013

math
Biologists have noticed that the chirping of crickets of a certain species is related to temperature, and the relationship appears to be very nearly linear. A cricket produces 119 chirps per minute at 67 degrees Fahrenheit and 172 chirps per minute at 88 degrees Fahrenheit. ...
August 24, 2013

U.S. Government
How is the American Government Organized and their functions? - I have to write a 5 paragraph essay and I need help researching. - Do you know a website I can get information? P.S ; I do not have a book. I'm taking an online class and I have to start/finish it by tomorrow...
July 23, 2013

math
How many pounds of birdseed are used to fill each feeder? draw a tape diagram to show your thinking
July 16, 2013

Government
i don't have a text to study. its an online class.
July 9, 2013

Government
1. The U.S. Constitution's Article I, Section 1 created the office for the U.S. president. A) True B) False 2. The term of office for a House member is two years. A) True B) False 3. Two requirements for members of the House are that they must be 25 years of age and a ...
July 9, 2013

statistics
If I know that a set of test scores has a mean of 75 and a standard deviation of 8 what can I conclude?
July 5, 2013

Government (Check Answers)
I need help with #7 ; #8 ; #9 .
June 27, 2013

Government (Check Answers)
Ms. Sue , will you check my answers? 11. B? 24. G ; F ; H ; A ; D ; E ; B ; C ?
June 27, 2013

Government (Check Answers)
1. What is the procedure of voter identification intended to help prevent fraudulent voting and keep the process organized? A) political socialization B) registration C) gerrymandering D) precinct divisions E) franchising 2. What do you call all the persons entitled to vote in...
June 27, 2013

U.S. Government
11. socialization 12. injunction & i question #8... because property owners doesn't fit in the blanks... Ms. Sue ; Could you help me with my Economics Questions? Please?
June 27, 2013

U.S. Government
1. Amendment -- gave all men the right to vote regardless of race. - 15? 2. People who believe voting is important have high political ----c-c-. - efficacy? 3. It is an essential part of democracy in action, for the people to ---e. - vote? 4. The age requirement to vote in the...
June 27, 2013

Economics
Because they dont do the work for you, they check to see if your answers are right. & tell you if they're not!
June 27, 2013

government
Will you tell me which 3? & Do you check Economics work too? I have posted stuff on here that I do need help on & I don't think nobody had checked it.
June 27, 2013

government
1. The Framers of the US Constitution supported political parties. A) True B) False 2. The US is predominantly a multiparty system. A) True B) False 3. The main focus of major parties is to nominate candidates and get them elected. A) True B) False 4. The purpose of the ...
June 27, 2013

Economics
The Law of Supply (movement along the curve due to the price effect) occurs because A) producers usually offer more for sale at lower prices than at higher prices. B) marginal production costs usually fall at higher rates of production. C) people can buy only so much of a ...
June 26, 2013

Government
Would you mind to help me with my Economics homework?
June 26, 2013

Government
Thank you for the help. :)
June 26, 2013

Government
1. C 2. A 3. A 4. A 5. B 6. trade agreements 7. enumerated 8. ? 9. E 10. B 11. A 12. ? 13. A
June 26, 2013

Government
1. States must honor each other's laws and court decisions according to... (C) A) 1st Amendment B) Privileges and Immunities Clause C) Full Faith and Credit Clause D) Revenue Sharing 2. The National Government can enter a State to restore order in cases of domestic unrest...
June 26, 2013

government
Will you help me with my other post, I added the answers that i thought they were . They are in () or Under the question... Please?
June 26, 2013

government
Is it FALSE?
June 26, 2013

government
I don't have a book. I'm taking an online class. That's why I asked. I do research before i ask the question.
June 26, 2013

government
The National Government can form a new State out of an existing State without the permission of the existing state? True or False
June 26, 2013

Government
I re-posted the questions with answers. Will you check them?
June 26, 2013

Government
It's not a test...
June 26, 2013

Government
1. States must honor each other's laws and court decisions according to... A) 1st Amendment B) Privileges and Immunities Clause C) Full Faith and Credit Clause D) Revenue Sharing 2. The National Government can enter a State to restore order in cases of domestic unrest. A) ...
June 26, 2013

Math
If the manufacturer from the question above charges a 4½% late fee, how much would City Cellular owe if it did not pay the balance by the net date?
May 21, 2013

Math
City Cellular purchased $28,900 in cell phones on April 25. The terms of sale were 4/20, 3/30, n/60. Freight terms were F.O.B. destination. Returned goods amounted to $650. What is the net amount due if City Cellular sends the manufacturer a partial payment of $5,000 on May 20?
May 21, 2013

Math
Using your answer to the question above, what is the net dollar amount of that rose order?
May 21, 2013

Math
Fantasia Florist Shop purchases an order of imported roses with a list price of $2,375 less trade discounts of 15/20/20. What is the dollar amount of the trade discount?
May 21, 2013

physics
A block with mass m=6.00kg slides down a surface inclined at 37° to the horizontal. The coefficient of kinetic friction is 0.20. A string attached to the block is wrapped around a flywheel on a fixed axis as seen in the figure. The flywheel has mass 25.0 kg and moment of ...
May 1, 2013

Math
Find the radius of a right circular cone if its volume is 1.5 times its lateral area and its radius is half its slant height.
April 30, 2013

Calculus
Find the dimension of a rectangle with perimeter 295 whose area is as large as possible
April 30, 2013

Biology
The term "worm" is a description of a body shape. A worm had a long, thin body. Aew all worms in the same phylum? How do you know?
April 26, 2013

Math
Find the area of the rectangular yard. A = length times width Then, divide the area by 600.
April 17, 2013

7th grade math
Three times larger assuming the cube is as tall as the pyramid.
April 17, 2013

Math
The other two angles would be acute angles.
April 17, 2013

Math
480 feet?
April 17, 2013

science
light trsavels at 3*10 m/s. an astrounaut shines a flash light in space. 4 hours later a martian sees a light from the astrounaut. how far away is mars from the astrounaut?
April 17, 2013

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