7. Hydrogen (H) and oxygen (O) react together to form water (H2O). The reaction is as follows: 2H(2) +0(2) 2H(2)0. How many total atoms are on the reactant side of the equation?
A. 2
B. 4
C.6
D. 8

You open a can of soda at room temperature and hear a hiss. which of the following factors has changed inside the container? a.) atmospheric pressure b.) temperature of gas c.) type of gas d.) amount of gas