1. Oxygen gas in a 15.0 L container exerts a pressure of 0.48 atm at 21°C. How many moles of oxygen are in this
container?

How many moles of carbon dioxide will form if 2.5 moles of c3h8 is burned

The activation energy for the reaction no2(g)+co2(g)⟶no(g)+co(g) is ea = 300 kj/mol and the change in enthalpy for the reaction is δh = -100 kj/mol . what is the activation energy for the reverse reaction?

In medium-sized stars such as the sun, nuclear fusion almost always means the fusing of nuclei to form , but larger stars can produce elements as heavy as