Question

Q13- Consider reaction: Na(s) + O₂(g) → Na₂O(s). Moles of sodium needed to balance equation would be
A) 1
B) 2
C) 3
D) 4

Q14- Consider reaction: S(s) + O₂(g) → SO₂. state of SO₂ in this reaction is
A) Liquid
B) Solid
C) Gaseous
D) All Three

Answer 1

Answer:

1.

B). 2.

2.

C). gaseous.

Answer 2

Answer:

Q13 - B)2

Q14 - A) liquid

Explanation:

sodium has 1 electron in outer ring

and oxygen has six electron in outer ring

to gain the state of nobal gas oxygen needs 2 electron to gain to become noble gas