10) Aluminum is a highly reactive metal that oxidizes when exposed to air. Which of these would be a good first step in balancin

Question

BabaBlast [244]

4 years ago

15

10) Aluminum is a highly reactive metal that oxidizes when exposed to air. Which of these would be a good first step in balancin

g this reaction? Al + O2 → Al2O3

Chemistry

2 answers:

snow_lady [41] · Answer 1 · 2021-12-12T22:37:33+03:00

snow_lady [41]4 years ago

4 0

Answer:

put a 3 on o2

Explanation:

i did the usa test prep

PtichkaEL [24] · Answer 2 · 2021-12-12T20:11:31+03:00

Hello!

(Missing)

<span>A) Put a coefficient of 3 on Al
B) Put a coefficient of 3 on O2
C) Put a coefficient of 2 on O2
D) Put a coefficient of 3 on Al2O3

A good first step to balance this reaction is Put a coefficient of 3 on O</span>₂.

All the other options don't balance an atom but putting a coefficient of 3 on O₂ achieves the goal of starting to balance Oxygen on both sides of the equation. The next step after that would be to put a coefficient of 2 on Al₂O₃ and there would be 6 Oxygen atoms on both sides of the equation.

Have a nice day!