When calcium chloride dissolves in water, what ions are present?

What is the temperature in degrees Celsius of 0.0250 mole of hydrogen gas if it occupies 665 mL at 715 torr?

27.7 L of a gas is cooled at constant pressure from 87°C to 24°C. What will the volume be at the lower temperature?

How many moles of carbon dioxide are produced by the complete combustion of 5.00 moles of C5H10?___C5H10 +  ___O2  

Convert 3.71 atm to psi

In reacting aluminum carbonate with hydrochloric acid according to the equation ___Al2(CO3)3 + ___HCl 

The temperature of a gas is 23°C. What is its temperature in Kelvin?

10.7 L of a gas at 1.75 atm are expanded to 20.0 L at a constant temperature. What is the new gas pressure?

According to the following equation:___ H2SO4 + ___NH3 

A gas occupies 4.71 liters at 62°C and 795 torr. What volume will it occupy if it is cooled to 17°C and compressed to 911 torr?