Question

pls all answers pls
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Answer 1

10A) a) Copper

b) Combination reaction

c) Mg + CuSo4 ----> MgSo4 + Cu

d) Potassium > Magnesium > Zinc > Gold

11A) Calorific value is the amount of energy released or produced when 1 kg of fuel burns or any other substance is burnt in the presence of oxygen and the products of combustion are cooled to STP. Its SI unit is kJ/kg. The calorific value goes up when the efficiency increases and vice versa

Thanks

Answer 2

Answer:

I answered A

Explanation:

what is magnesium?

Magnesium is an important mineral, playing a role in over 300 enzyme reactions in the human body. Its many functions include helping with muscle and nerve function, regulating blood pressure, and supporting the immune system