Chemistry Quiz 32 (25 MCQs)

Quiz Instructions:

Select an option to see the correct answer instantly.

1. Which would weigh more, a mole of atoms of H or a mole of atoms of He?

2. Two or more atoms linked together to make a substance with unique properties

3. Electrons are _____ in covalent bonds.

4. Anything that cannot be broken down through physical means

5. What is the complete name of the Dutch Chemists in which the other term for intermolecular forces is name after him?

6. Science that deals with matter and energy and the interactions between them.

7. Mass and _____ are always conserved in a chemical reaction.

8. What kind of property results in the substance into changing into a new substance?

9. Water has an unusually high boiling point for a molecular compound because it has

10. How many valence electrons does an atom of chlorine have?

11. How many Hydrogen atoms are in Water (H2O)?

12. The mineral containing both magnesium and calcium is

13. What is the name of group 17?

14. If sugar is added in a water, what happen to the boiling poingt?

15. What is the pure chemical substance that contain one kind of atom only?

16. Atoms have no electric charge because they

17. An atom has an atomic number of 13 and a mass number of 27. It also has a +3 charge. What do you know about this atom?

18. What is used to avoid melting of ice?

19. Pure substance made of only 1 type of molecule

20. Which of the following is the predominant intermolecular force in water?

21. Alloys made with mercury as one metal are called?

22. Super hot and super excited atoms, it is the most common state of matter in universe.

23. Which of the following type of intermolecular forces is present in all substances, regardless of polarity?

24. Which one of these is NOT located in the element square on the Periodic Table?

25. A soda or soft drink is an example of a solution where in _____?