Question

6. Name the following:- [5] a. Two substances that can be used as filter. b. Two greenhouse gases. c. Two major sources of natural water. d. Two substances which can sublime. e. Two inert gases​

Answer 1

Answer:

a.Filter Paper

Charcoal

b.Carbon Dioxide

Methane

c.Surface Water

Ground Water

d.Iodine

Dry Ice

e.Helium

Neon

Hope it helps you

Answer 2

Answer:

Because all sulphates are soluble except those produced with silver, calcium, barium, mercury, lead, and strontium ions, potassium sulphate is soluble. Finally, copper (II) hydroxide is insoluble because, with the exception of alkali metal ions and barium, all hydroxides are insoluble.