Describe two chemical reactions that require energy in order to occur

Container A holds 722 mL 722 mL of an ideal gas at 2.40 atm. 2.40 atm. Container B holds 169 mL 169 mL of a different ideal gas at 4.60 atm. 4.60 atm. If the gases are allowed to mix together, what is the resulting pressure?

Convert 0.320 atm to mmHg.

Which corresponds to a pressure of 1.23 atm?

The carbon cycle does not really involve matter. True False

What are two features used to describe matter

Nitrogen dioxide (NO2) gas and liquid water (H2O) react to form aqueous nitric acid (HNO3) and nitrogen monoxide (NO) gas. Suppose you have 5.0 mol of NO2 and 11.0 mol of H2O in a reactor. Suppose as much as possible of the NO2 reacts.

How long does it take the Earth to rotation and revive

What is Charles' law formula?

Which stars have the highest absolute brightness? Select one: a. Supergiants b. Giants c. Yellow stars d. Dwarfs

What volume would 3.01•1023 molecules of oxygen gas occupy at STP?