In what forms are metal found in nature? With the help of examples explain how metals react with oxygen, water and dilute aicds. Also write chemical equations for the reaction.

Metals are found in native as well as combined state. The higher reactive metals are found in combined state whereas lower reactivity metals are found in native state(free state)

1- Metals react with oxygen to produce metallic oxide

2Cu + O₂ ------ 2CuO

2. Metals react with cold water and hot water to give metallic hydroxide and hydrogen but while reacting with steam the give metallic oxide and hydrogen.

2K + 2H₂O ------ 2KOH + H₂ (cold water)

3Fe + 4H₂O ---------- Fe₃O₄ + 4H₂ (steam)

3. 2Na + 2HCl ------- 2NaCl + H₂

Metals are found in native as well as combined state. The higher reactive metals are found in combined state whereas lower reactivity metals are found in native state(free state)

1- Metals react with oxygen to produce metallic oxide

2Cu + O₂ ------ 2CuO

2. Metals react with cold water and hot water to give metallic hydroxide and hydrogen but while reacting with steam the give metallic oxide and hydrogen.

2K + 2H₂O ------ 2KOH + H₂ (cold water)

3Fe + 4H₂O ---------- Fe₃O₄ + 4H₂ (steam)

3. 2Na + 2HCl ------- 2NaCl + H₂

Metals are found in native as well as combined state. The higher reactive metals are found in combined state whereas lower reactivity metals are found in native state(free state)

1- Metals react with oxygen to produce metallic oxide

2Cu + O₂ ------ 2CuO

2. Metals react with cold water and hot water to give metallic hydroxide and hydrogen but while reacting with steam the give metallic oxide and hydrogen.

2K + 2H₂O ------ 2KOH + H₂ (cold water)

3Fe + 4H₂O ---------- Fe₃O₄ + 4H₂ (steam)

3. 2Na + 2HCl ------- 2NaCl + H₂

Metals are found in native as well as combined state. The higher reactive metals are found in combined state whereas lower reactivity metals are found in native state(free state)

1- Metals react with oxygen to produce metallic oxide

2Cu + O₂ ------ 2CuO

2. Metals react with cold water and hot water to give metallic hydroxide and hydrogen but while reacting with steam the give metallic oxide and hydrogen.

2K + 2H₂O ------ 2KOH + H₂ (cold water)

3Fe + 4H₂O ---------- Fe₃O₄ + 4H₂ (steam)

3. 2Na + 2HCl ------- 2NaCl + H₂

Metals are found in native as well as combined state. The higher reactive metals are found in combined state whereas lower reactivity metals are found in native state(free state)

1- Metals react with oxygen to produce metallic oxide

2Cu + O₂------ 2CuO

2. Metals react with cold water and hot water to give metallic hydroxide and hydrogen but while reacting with steam the give metallic oxide and hydrogen.

2K + 2H₂O ------ 2KOH + H₂(cold water)

3Fe + 4H₂O ---------- Fe₃O₄+ 4H₂(steam)

3. 2Na + 2HCl ------- 2NaCl + H₂