Question

What reaction is it
Hexane+oxygen - carbon dioxide+water

Calcium carbonate - calcium oxide+carbon dioxide

Magnesium+copper oxide - magnesium oxide+copper

Hydrochloric acid+sodium hydroxide - sodium chloride+water
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Answer 1

Answer:

chemical reaction ... , . .

Answer 2

Answer:

I hope helps to you

Explanation:

1.The combustion of hexane (C6H14) is represented in the balanced equation : 2 C6H14 + 19 O --- 12 CO2 + 14 H2O MM hexane 86.18 g/mole, O2 32 g/mole, CO2 44 g/ mole, H2O 18 g/mole A. If 45 g of hexane is reacted and 45 g of water is recovered.

2.Calcium oxide and carbon dioxide gas are formed. The equation for the reaction is shown. Cacos CaO + CO2 225 kg of calcium carbonate is heated until there is no further change in mass. The yield of calcium oxide is 85 kg.

3.When copper oxide is heated with magnesium powder, then magnesium oxide and copper are formed.

4.Sodium hydroxide solution reacts with Hydrochloric acid solution to produce sodium chloride solution and water.