# Jetta

Most popular questions and responses by Jetta
1. ## chemistry

a sample containing 1.50 mol neon gas has a volume of 8.00L.what is the new volume of the gas in liters when the following changes occur in the quantity of the gas at constant pressure and temperature? a.a leak allows on-half of the neon atoms to escape.

2. ## chemistry

calculate the pressure,in atmospheres, of 2.00 mol helium gas in a 10.0-L container at 27 celcius?

3. ## chemistry

calculate the pressure,in atmospheres, of 2.00 mol helium gas in a 10.0-L container at 27 celcius?

4. ## chemistry

How much 0.150 M sodium hydroxide would be required to just neutralize 15 mL of 0.175M hydrochloric acid? 15mL x 0.150M/0.175M=12mL correct!

5. ## chemistry

a sample of helium gas has a volume of 6.50L at a pressure of 845mm Hg and a temperature of 25 celcius.what is the pressure of the gas in atm when the volume and temperature of the gas sample are changed to the following: a. 1850 mL and 325K

7. ## math

Multiplying and Dividing Rational Expressions: 2) x^2-8x+7/x^2+6x-7 = (x-7)/(x+7) 3) x^2-5x+6/x+4 times 3x+12/x-2 =3(x-3) 4)2x-3/5x+1 divided by 6x^2-13x+6/15x^2-7x-2=1 5) x^3-9x/x^2+11x+24 times x^2+7x-8/x^2-4x+3= x(x-3)(x-1)/(x+3)(x+8) 6) 4x-8/x^2-x-6

8. ## math

Multiplying and Dividing Rational Expressions: 2) x^2-8x+7/x^2+6x-7 = (x-7)/(x+7) 3) x^2-5x+6/x+4 times 3x+12/x-2 =3(x-3) 4)2x-3/5x+1 divided by 6x^2-13x+6/15x^2-7x-2=1 5) x^3-9x/x^2+11x+24 times x^2+7x-8/x^2-4x+3= x(x-3)(x-1)/(x+3)(x+8) 6) 4x-8/x^2-x-6

9. ## chemistry

Why are cis and trans isomers not possible for ClCH2CH2Cl? Because it is a single bonded compound and cis-trans isomerism is only possible when fre rotation about a bond is restricted or a double bond or cycle is essential for existence of cis-trans

10. ## chemistry

use the molar volume of a gas to solve the following at STP: a. the number of moles of O2 in 44.8 L O2 gas. b. the number of moles of CO2 in 4.00L CO2 gas. c. the volume(L) of 6.40g O2. d. the volume(mL) occupied by 50.0g neon.

12. ## chemistry

why is C4H10 the simplest alkene that can have structural isomers? Because compounds wwith the same molecular formula but different structural formula are called isomers in C4H10

13. ## chemistry

solve for the new pressure when each of the following temperature changes occurs, with n and V constant: b. an aerosol can has a pressure of 1.40 atm at 12 celcius.what is the final pressure in the aerosol can if it is used in a room where the temperature

14. ## math

Multiplying and Dividing Rational Expressions: 1. 2x^4/x^5 times 6x/x^3 times x/4= 3/x^2

15. ## math

Multiplying and Dividing Rational Expressions: 1. 2x^4/x^5 times 6x/x^3 times x/4= 3/x^2

16. ## chemistry

why is unecessary to measure precisely 25.00mL of unknown acid into the beaker?

17. ## chemistry

A volatile liquid was allowed to evorate in a 43.298g flask that has a total volume of 252mL.the temperature of the water bath was 100 celsius at the atmospheric pressure of 776 torr.the mask of the flask and condensed vapor was 44.173g.calculate the molar

18. ## math

solve for X ? 1) 8-3x < 14 -3x/-3 < 6/-3 x=-2 2) 7x -3 > 4x +3 3x -3> 3 3x/3 >6/3 x>2 3) x-5 -8 x-4 4) x+ 7 30 x 6 are they correct..

19. ## math

2(x+4)^3(3x-15)^4=0 solve for x. is the answer 3,4

20. ## math

find the degree of 2x^5y^3+6x^2y^7 is the answer 14

21. ## math

how can i find the degree of 2x^5y^3+6x^2y^7

22. ## chemistry

a graduated cylinder weights 64.376g empty.when i measure 30.0mL into it weights 89.98g.what is the density of the liquid? 64.376g-89.98g=25.604g then i 25.604/30.0=.853

23. ## chemistry

calculate the densities of each of the following gases in g/L at STP: a. F2 b. CH4 c. Ne d. SO2

24. ## chemistry

11.31) solve for the new pressure when each of the following temperature changes occurs, with n and V constant: a. a gas sample has a pressure of 1200 torr at 155 celcius. what is the final pressure of the gas after the temperature has droped to 0 celcius?

25. ## biology

1. Which bond will comes apart in water? answer: ionic

26. ## Biology

Hydrogen= 1 proton, 0 Neutrons, 1 Electrons and 1 electrons in outer shell. is correct!

27. ## math

Radical Equation: Solve for x. 2x+6=1+2x-1

28. ## math

is 9x^2-36x+25 a perfect square? the answer is no

29. ## math

Find the degree of 7u^4v^2w^5 is the answer 11

30. ## math

Find the degree of 7u^4v^2w^5

1. ## math

are they correct?

posted on August 4, 2010
2. ## math

would you tell me please are they correct?

posted on August 4, 2010
3. ## math

posted on July 13, 2010
4. ## math

posted on July 13, 2010
5. ## chemistry

butane CH3-CH2-CH2-CH3 iso butane CH3-CH(CH3)-CH3

posted on June 29, 2010