Aballoon is filled with 35.0 l of helium in the morning when the temperature is 20.0c. by noon the temperature has risen to 45.0c. what is the new volume of the balloon?
a
2.5l
b
3.5l
c
4.5l
d
5.5l

What is the maximum amount of al2(so4)3 which could be formed from 15.84 g of al and 12.89 g of cuso4?

Flourine is found to undergo 10% radioactivity decay in 366 minutes determine its halflife

Which of the following statements about acidic water is true? a. acid has no effect on the h,o molecules. b. the solution contains a larger number of oh ions than h,o ions. c. the solution contains a larger number of h,o ions than qh ions. d. the solution contains an equal number of h,o ions and oh ions. none of the above e.