Balance the equation H2+O2=H2O.

2H2 + O2 = 2H2O

Explanation:

To balance the equation, you must place coefficients behind the element and have equal amounts of atoms on both sides. In this case, to balance the equation, it would read:

2H2 + O2 = 2H2O

answer

i think the answer is a) as air pressure in an area increases, the density of the gas particles in that area decreases.

hope it

d.) circle motion requires a force to give it a centripetal acceleration.