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Review Grade 8/3(final 1st sem)

Total questions: 35

Worksheet time: 18mins

Name
Class
Date
1.

What do we call the measure of how much solute can dissolve in the solvent?

a)

  a. Substance

b)

b. Solubility

c)

  c. Separation

d)

d. Changes

2.

Which of the following is a type of bonds?

a)

   a. Ionic bond

b)

b. Bond paper

c)

   c. Formula

d)

d. Element

3.

Which part of the solution is the larger amount and dissolves a solute?

a)

    a. Solute   

b)

b. Solvent

c)

c. Substance

d)

d. Solution

4.

What do we call the building blocks of all matter?

a)

a. Examples

b)

b. Solute

c)

   c. Elements

d)

d. Solvent

5.

Which part of the solution is the smaller amount and is dissolved in the solvent?

a)

a. Solute

b)

b. Solvent

c)

c. Substance        

d)

d. Solution

6.

What do we call the atom that has a positive and negative charged?

a)

    a. Ion

b)

b. Iron

c)

c. Atom

d)

d. Compound

7.

What is the symbol of the element Silver?

a)

a. Hg

b)

b. Aa

c)

   c. Ga

d)

d. Ag

8.

What is another simple method of separation?

a)

a. Filtration

b)

b. Separation

c)

c. Cooperation

d)

d. Distillation

9.

Which object can be separated from other substances because of magnetic attraction?

a)

a. Leaves    

b)

b. Cloth

c)

c. Paper     

d)

d. Metals

10.

What do we call the removal of one substance from a mixture of more than one?

a)

a. Extraction

b)

b. Solute

c)

c. Solvent

d)

d. Gas

11.

Who is the English Chemist who conducted the early experiments on elements?

a)

    a. John Dalton

b)

b. Jay Dee

c)

c. Thomas Dalton        

d)

d. James Bond

12.

What is the short name for High Performance Liquid Chromatography?

a)

a. HFLC

b)

b. HPLC

c)

c. HHLC

d)

d. HLCT

13.

What do you call the paper used in filtration?

a)

   a. Filter paper

b)

b. Cup

c)

c. Litmus paper    

d)

d. Plate

14.

What does TLC stands for?

a)

a. The Layer Chromatography

b)

b. Table Lay Chromatography

c)

c. Thin Layer Chromatography

d)

d. The Lay Chromatography

15.

What is the process by which a gas is turned back into the liquid state?

a)

a. Evaporation

b)

b. Condensation

c)

 c. Solution  

d)

d. Population

16.

What is the smallest unit of an element?

a)

    a. Ion

b)

b. Iron

c)

    c. Atom

d)

d. Compound

17.

What is the chemical bond between two ions with opposite charges?

a)

a. Ion

b)

b. Ionic bond

c)

c. Atom

d)

d. Compound

18.

What is the energy that is released when atoms disintegrate or decay?

a)

a. Radioactive

b)

b. Radio

c)

c. Detective

d)

d. Thermal

19.

What is the symbol of the element Gold?

a)

a. Ag

b)

b. Au

c)

c. Us

d)

d. Ga

20.

Which of the following is not a method of separation?

a)

a. Extraction by solvent

b)

b. Distillation

c)

  c. Chromatography

d)

d. Substance

21.

What does it mean when there are changes between solids, liquids, and gasses from one form to another?

a)

    a. Solvent           

b)

b. Solute

c)

    c. Physical changes

d)

d. Mixture

22.

What do we call the chemical change that is produced by an electric current?

a)

a. Electrolysis

b)

b. Element

c)

c. Radioactive     

d)

d. Compound

23.

What is the symbol of the element Potassium?

a)

a. Ma

b)

b. K

c)

   c. Na

d)

d. Am

24.

What is the substance that is capable of attaching the substance to its surface?

a)

a. Adsorbent

b)

b. Distillation

c)

  c. Solute

d)

d. Solvent

25.

What do we call the arrangement of all elements in a table grouped together by similar properties?

a)

   a. Periodic table

b)

b. Dining table

c)

c. Table

d)

d. Red table

26.

John Dalton is a Scottish Chemist.

a)

true

b)

false

27.

The symbol for copper is Cp.

a)

true

b)

false

28.

The symbol for sodium is Na.

a)

true

b)

false

29.

Fishing is another simple method of separation.

a)

true

b)

false

30.

There are two main types of bonds.

a)

true

b)

false

31.

High Platform Lens Chromatography usually referred to as HPLC.

a)

true

b)

false

32.

There are two components of solution; a solute and a solvent.

a)

true

b)

false

33.

Distillation is not a method of separation.

a)

true

b)

false

34.

Vaporization is the temperature at which a solid change into a liquid.

a)

true

b)

false

35.

The symbol for gold is Au.

a)

true

b)

false