Question

FOR CLASS 8
1.What is acid rain
2.Why copper can not displayes zinc from its salt solution
3.Complete the following equation
a)IRON +OXYGEN +WATER
b) MAGNESIUM +OXYGEN
c) COPPER SULPHATE+ZINC​

Answer 1

Answer:

just 5 points for many questions only

so I will just answer no.1 and no.2

no.1-Acid rain, or acid deposition, is a broad term that includes any form of precipitation with acidic components, such as sulfuric or nitric acid that fall to the ground from the atmosphere in wet or dry forms. This can include rain, snow, fog, hail or even dust that is acidic.

no.2-Metals are good conductor of heat and electricity. So immersion rods are made of metallic substance. (c) Copper is less reactive than zinc. Therefore copper cannot displace zinc from its salt solution.

Answer 2

Answer:

1. Acid rain is a rain or any other form of precipitation that is unusually acidic.

2.Because copper is less reactive than zinc.

3.a) Hydrated iron( III )oxide.

b)MgO

c)Zn+CuSo4 -ZnSo4+Cu.

Explanation:

Hope it helps you mate.

Have a great day.