Chemistry Quiz 49 (16 MCQs)

Quiz Instructions:

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1. Which area of chemistry focuses on the composition of matter?

2. Which is the most purest form of iron?

3. An $ ionic\ compound$ has _____ charge.

4. What subatomic particles found in the nucleus have no charge?

5. Name the phenomenon in which the same number and types of atoms may join together in different molecular arrangements.

6. Which of the following reactions is a combustion reaction?

7. What is a chemical bond that involves transferring valence electrons?

8. The molecular formula for Nitric acid

9. How many atoms is in this formula? Na2 CO3

10. An atom has 10 protons and a mass of 18. It has _____ neutrons

11. The molecular formula of the alkane whose number of carbon is 7 is

12. The boiling point ofthe water is an example of which of the following?

13. Mixtures differ from substances because the composition of a mixture can _____

14. Gallons = _____ hL

15. If salt is dissolved in water, water is the _____

16. _____ is the branch of chemistry that would analyze new chemicals made from carbon-containing building blocks.