Complete the equation. All help needed on this. Thank you.

Number of total atoms :

Left=right=19

The empirical formula (EF) is the smallest atomic ratio of the constituent elements.

The empirical formula shows the simplest comparison of the molecules making up the molecule

Molecular formula (MF) is a formula that shows the number of atomic elements that make up a compound.

(EF)n = MF

N=2

H=4 x 2 = 8

Cr=2

O=7

Cr=2

O=3

N=2

H=4x2=8

O=4

Left = 2+8+2+7=19

Right=2+3+2+8+4=19

so the equation is said to be balanced

1. a)c-14 has two more protons

2. d)they have different numbers of protons, neutrons, and valence electrons; they are all gases at room temperature.

3. c) iron and nickel.