Question

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Answer 1

Answer:

14 a) pure boiled distilled water in test tube B and add about 1 ml of oil and Cork it .The oil will flow on water and prevent the air from dissolving in the water . Put some anhydrous calcium chloride in test tube C and Cork it . Anhydrous calcium chloride will absorb the moisture from the air

b) The two methods to prevent corrosion of metals are

1)Enviourmental measures

2)Design modification

Answer 2

Answer:

correct answers are in attachment