🤓 Based on our data, we think this question is relevant for Professor Hu's class at UNCG.

Consider the equations below.

(1) Ca (s) + CO_{2} (g) + 1/2O_{2} (g) → CaCO_{3} (s)

(2) 2Ca (s) + O_{2} (g) → 2CaO (s)

How should you manipulate these equations so that they produce the equation below when added: Check all that apply.

CaO (s) + CO_{2} (g) → CaCO_{3} (s)

(A) reverse the direction of equation (2)

(B) multiply equation (1) by 3

(C) multiply equation (2) by 1/2