Hydrogen gas (H2) occupies a volume of 100.0 mL at 27°C and 300 Torr. What pressure will it have if it's cooled to –73°C and the volume remains constant?

Large helium-filled balloons are used to lift scientific equipment to high altitudes. what is the pressure inside such a balloon if it starts out at sea level with a temperature of 10.0ºc and rises to an altitude where its volume is twenty times the original volume and its temperature is – 50.0ºc ?

Measurements that have similar values are: a. usually accurate b. sometimes accurate c. always accurate d. never accurate

What information does a complete ionic equation give that the balanced equation doesn’t show?