Question

which coefficients balance the following?
____Na+____H2O⇒____NaOH+_____H2

A) 1,1,1,1
B)2,2,2,2
C)1,1,1,2
D)2,2,2,1

Answer 1

The answer is D. (2,2,2,1)

Answer 2

____Na + ____H2O —> ____NaOH + _____H2

Na: 1
H: 2
O: 1

Na: 1
H: 3
O: 1

_2_Na + _2_H2O —> _2_NaOH + _1_H2

Na: 2
H: 4
O: 2

Na: 2
H: 4
O: 2


The answer is D)2,2,2,1