Question

write balanced chemical equation for
1)first magnesium and oxygen--> magnesium oxide
2) sodium +chlorine ->sodium chloride
3) Aluminium +chloride ->aluminum chloride


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Answer 1

Explanation:

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Answer 2

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Sodium reacts with oxygen to form sodium oxide and has the following balanced chemical equation: 4Na+O2→2Na2O 4 N a + O 2 → 2 N a 2 O .magnesium + oxygen → magnesium oxide

Mg + O 2 → MgO

reactants: 1 × Mg, 2 × O products: 1 × Mg, 1 × O Not balanced.

Mg + O 2 → 2MgO

Mg + O2 → MgO is a Combination reaction.

As magnesium (Mg) has a valency of +2, and oxygen (O) has a valency of -2, the ratio would be 1:1, and magnesium oxide would be represented as MgO. The number of atoms of each element on reactant and product side must be equal. That is the basic principle for balancing an equation.When magnesium reacts with oxygen, it produces light bright enough to blind you temporarily. Magnesium burns so bright because the reaction releases a lot of heat. As a result of this exothermic reaction, magnesium gives two electrons to oxygen, forming powdery magnesium oxide (MgO).Let's see the complete reaction when sodium metal reacts with oxygen of the air at room temperature. Sodium is a very reactive metal, it tends to react with oxygen to form sodium oxide but this is an unstable compound and soon reacts with hydrogen to form sodium hydroxide.

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