Question

В реакции кальция с кислородом образуется

Answer 1

Образуется 2СаО т.е оксид кальция.

Answer 2

2Ca +O2 =2CaO........



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Answer 3

Reaction of Calcium with Oxygen

When calcium reacts with oxygen, it forms calcium oxide. The chemical equation for this reaction is:

2Ca(s) + O2(g) → 2CaO(s)

This reaction is a classic example of a metal reacting with a non-metal to form an ionic compound. The balanced chemical equation shows that two atoms of calcium react with one molecule of oxygen to produce two formula units of calcium oxide.

Calcium oxide, also known as quicklime, is a white, caustic, alkaline substance that is widely used in various industrial applications, including the production of cement, paper, and chemicals. It also has uses in agriculture, environmental remediation, and as a desiccant