Question

1. A circular object has radius 2 cm. find its surface(physics) 2. What is the formula of: calcium carbonate Magnesium chloride Zinc chloride Silver chloride

Answer 1

Explanation:

2) Calcium carbonate = CaCO

Magnesium chloride = MgCl

Zinc chloride = ZnCl

Silver chloride = Agcl

1) A≈12.57cm²

Answer 2

Answer:

1. 88/7

2. CaCO3,MgCl2

,ZnCl2,AgCl2