Question

Ca + O2 =?, P + O2 =?​

Answer 1

Ответ:

2 Ca + O2 → 2 CaO

4 P + 5 O2 → 2 P2O5

Answer 2

Chemical Equations:

- The chemical equation Ca + O2 = ? represents the reaction between calcium (Ca) and oxygen (O2). This reaction is a synthesis reaction, where calcium reacts with oxygen to form calcium oxide (CaO). The balanced chemical equation for this reaction is:

2Ca + O2 → 2CaO.

- The chemical equation P + O2 = ? represents the reaction between phosphorus (P) and oxygen (O2). This reaction is also a synthesis reaction, where phosphorus reacts with oxygen to form phosphorus pentoxide (P2O5). The balanced chemical equation for this reaction is:

4P + 5O2 → 2P2O5.

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