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Liquid water (H_{2}*O) is formed when two gases, hydrogen (H_{2}) and oxygen (O_{2}) , react. Why are the properties of water different than those of the reactant gases?

Liquid water H2O is formed when two gases hydrogen H2 and oxygen O2 react Why are the properties of water different than those of the reactant gases class=

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Answer

When substances chemically combine, products with completely different properties form

Explanation

The reaction between gaseous hydrogen and oxygen to form water is a chemical change. Hence, when substances (like that of gaseous hydrogen and oxygen) chemically combine, products (water) with completely different properties form.

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