Question

Which of these is a balanced chemical equation?

2Ca + O^2 → 2CaO

Ca + O^2→ CaO

Ca + 2O^2 → 2CaO

2Ca + O^2 → CaO

Answer 1

first option -> 2Ca + O^2 → 2CaO

Step-by-step explanation:

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Answer 2

The first one: 2Ca + O^2 → 2CaO