Chemical reactions are a change in substance while nuclear is destruction
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Explanation:
The answer is this because
Answer:

Explanation:
2Al₂O₃ ⟶ 4Al +3O₂
n/mol: 1.26
The molar ratio is 4 mol Al:2 mol Al₂O₃.

The answer is B.) 3
Because Segment 2 shows the condensation of water from the gas phase to the liquid phase. <u>It is during this segment that liquid water first appears.</u> Therefore, after 3 minutes, liquid water first appears.