Question

HAVE NO CLUE!!!! ()_()

Answer 1

\[2\text H_2\text O+\text O_2 \to 2\text H_2\text O\]

count the number of atoms on the left

#H = 2*2 = 4
#O = 2*1+1*2 = 4

and on the right

#H = 2*2 = 4
#O = 2*1 = 2


the oxygen is not balanced