Question

Write 3 chemical properties of metals with their chemical equation.

Answer 1

Answer:

Explain three chemical properties of metal with equation.

Answer 2

Final answer:

(1) Reaction of metals with oxygen:

    Form metal oxides.

    Example: $4Al+3O_{2}$ → $2Al_{2}O_{3}$

(2) Reaction of metals with acid:

    Form metal hydroxides and hydrogen.

    Example:$Na+2HCl$ → $2NaCl +H_{2}$

(3) Reaction of metals with water:

    Form metal salt and hydrogen gas.

    Example: $Mg+2H_{2}O$ → $Mg(OH)_{2} + H_{2}$

Given that: We are given the term, chemical properties of metals.

To find: We have to find three chemical properties of metals with their chemical equation.

Explanation:

Chemical properties of metals are given below.

(1) Reaction of metals with oxygen:

• Almost all metals react with oxygen to form corresponding metal oxides.

Example: $4Al+3O_{2}$ → $2Al_{2}O_{3}$

• Very high reactive metals such as metals like sodium and potassium react violently with oxygen. Thus such metals are stored in oil.

(2) Reaction of metals with water:

• Not all metal react with water. When metals react with water to form corresponding metal hydroxides and hydrogen.

Example: $Mg+2H_{2}O$ → $Mg(OH)_{2} + H_{2}$

• Metals like sodium and potassium react violently with water because such metals are highly reactive. It is exothermic reaction in which the released hydrogen gas immediately catches fire.

(3) Reaction of metals with acid:

• When metals react with acids to form corresponding metal salt and hydrogen gas.

Example: $Na+2HCl$ → $2NaCl +H_{2}$

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