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C.

that would be your correct answer.

Hydrogen and oxygen are the two elements that compose water.

Composition of water

Water is formed from hydrogen and oxygen. The ratio of hydrogen to oxygen in water is 2:1. The chemical formula of an element is the symbol that is used to represent the element.

The chemical for the reactants that compose water are;

  • Hydrogen (H)
  • Oxygen (O)

Hence, hydrogen and oxygen are the two elements that compose water.

Learn more about chemical formula: https://brainly.com/question/4102170

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