Chemistry Quiz 56 (20 MCQs)

Quiz Instructions

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1. Atoms that gain & lose electrons are called .....

Correct Answer: A) Ions.

2. How many electrons are in the outer shell of sodium

Correct Answer: A) 01.

3. CCl4 has a higher boiling point than HCl. This is due to ..... in CCl4.

Correct Answer: D) Strong London dispersion forces.

4. ..... are the COLUMNS on the periodic table and are organized by similar properties.

Correct Answer: B) Groups.

5. What is the atomic mass for Arsenic?

Correct Answer: A) 75.

6. In dehydration synthesis

Correct Answer: B) Water is removed to form bonds between monomers.

7. A ..... mixture is one that does not have a uniform composition

Correct Answer: A) Heterogeneous.

8. Which of the following is NOT a common sign that a chemical change has take place?

Correct Answer: B) Change in state.

9. A charged atom

Correct Answer: A) Ion.

10. A ..... is a negatively charged particle

Correct Answer: C) Electron.

11. What combination would dissolve a solid solute the fastest?

Correct Answer: D) High temperature, stirring.

12. Increase in temperature causes the particles to

Correct Answer: B) Move faster.

13. A lithium ion is much less reactive than a lithium atom because

Correct Answer: B) Has a full outermost energy level.

14. Isotopes

Correct Answer: C) Can decay to another element if radioactive.

15. Which two particles are found in the nucleus of an atom?

Correct Answer: A) Protons & neutrons.

16. Expressed in scientific notation, 0.0930 m is

Correct Answer: C) 9.30 X 10-2 m.

17. Which is more acidic?

Correct Answer: A) PH of 1.

18. Air contains maximum amount of

Correct Answer: B) Nitrogen.

19. Which of the following can be identified as the smallest units of life?

Correct Answer: B) Cells.

20. Which of the following exhibits hydrogen bonding?

Correct Answer: D) All of the above.