Question

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Answer 1

Answer:

a. MgO magnesium oxide

b. Ca calcium

c. H2SO4 sulphuric acid, Hcl hydrochloric acid

Answer 2

Answer:

A.Answer:Mg + O2 --> MgOExplanation:

Here the metal is Magnesium and it reacts with oxygen so it will form Magnesium oxide.

Explanation:

B.Calcium 鈣 (Ca) Strong heating is required to ignite the metal. It burns vigorously. The shiny surface of very reactive metals (potassium, sodium) soon becomes dull when exposed to air.

C.Commonly used mineral acids are sulfuric acid, hydrochloric acid and nitric acid (they are also known as bench acids). Mineral acids range from superacids (perchloric acid) to very weak (boric acid). Mineral acids tend to be very soluble in water and insoluble in organic solvents.

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