Please help me with chemistry questions..basic?

Question

Question 1
I have a diagram which represents an insoluble salt being separated from a liquid by filtration. Once the liquid has passed throught the filter and the insoluble salt is left behind, what is the liquid which has gone into the beaker which is underneath the filter?
a) filtrate
b) distillate
c) solute
d) solution
e) residue

Question 2:
Which of the following processes could be used to obtain water from a solution of sodium chloride and water?
a) distillation
b) chromatography
c) filtration
d) evaporation
e) decantation

Question 3:
A pure substance which is composed of different types of atoms always present in the same proportions is:
a) a mixture
b) an element
c) a heterogeneous mixture
d) a compound
e) a solution

Question 4:
The process of decantation is normally used to separate
a) solid particles from a liquid
b) a liquid from another liquid
c) a dissolved substance from a liquid
d) a filtrate from a solvent
e) a filtrate from a distillate

Answer 1

1 -- a) filtrate

2 -- a) distillation is the best and easiest answer, but b) chromatography (in the form of Ion Exchange Chromatography) could also be used.

3 -- d) a compound

4 -- a) solid particles from a liquid. Decantation is pouring off the liquid above an insoluble solid. The solid is often first compacted by centrifuging.

Answer 2

1. a
2. a, but d could work, if you can collect the evaporated vapors
3. d
4. a

Answer 3

Pleas just help me!= Read an encyclopedia like I did in school !

Answer 4

a) filtrate
a) ditillation
d)compound
i don't know # 4