Please Help I Am Confused.

according to the law of conservation of mass"The mass of reactants must be equal to the product"

so by inspection (trail or error method )

the coefficients are

2,1,2 respectively

so

2(2)+1(2)=2(2)+2(1)

4+2=4+2

6=6

the answer is c cumulus. cumulus clouds can be seen on a gray and rainy day, because cumulus clouds create thunderstorms. give me brainliest if right.

is this a question? wassup