The total volume of hydrogen gas needed to fill the Hindenburg was 2.20*10^8 L at 1.00 atm and 24.7 degrees? H2 (g) +(1/2)O2 (g) =H2O (l) the delta H = -286 kJ

What are the 4 phases of matter in order of increasing engery content?

In what environment would mineral formation caused by high pressures and high temperatures most likely occur?

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 ?