jakey

If one meter is equal to 39.4 inches, how many centimeters are in one foot? Answer 30.4 cm How is this answer obtained? i know there is 12 in in a foot and 100 centimeters in a meter. what happens next?

If the pressure on a 2.50 mL gas sample were doubled from 0.500 atm to 1.00 atm, what would be gas volume at the new pressure? my Answer 1.25 mL if i'm wrong can you show me how u got to your answer please.

Assuming the temperature and pressure are held constant, which of the gas samples has the greatest number of gas particles? Answer 45.0 mL O3 35.0 mL N2 15.0 mL of CO2 25.0 mL of SO3 how would i go about answering this question.

Which of the following would not be acceptable units for density? Answer kg/L g/mL3 g/cm3<< my answer

In the chemical formula of ammonium sulfate, (NH4)2SO4, how many hydrogen atoms are present? 4

One of the most commonly known_____________ which also happens to be a top favorite of mine is____________. do i need a comma's in this sentence?

I know!

so it would be 45.0 mL O3

ththe rusting of iron in a humid atmosphere decomposition of water into hydrogen and oxygen gases

I thought those two are also chemical?

Thats why i need help with this problem. the only choices i have is these four. atoms of gold turning into atoms of iron conversion of methane, which contains carbon and hydrogen, and oxygen into carbon dioxide and water the rusting of iron in a humid atm...

thanks so, would 18 carat gold jewelry be the right answer?

100% you are right you savior