Chemistry Quiz 35 (25 MCQs)

Quiz Instructions:

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1. Which of the following describes covalent bonds?

2. A chemical property that refers whether a compound will burn when exposed to flame.

3. Iron, mercury, lead, sulfur, chlorine, sodium, and uranium are all examples of which type of matter?

4. An element has a fixed composition because it only contains one type of _____

5. Which of the following statements about alkenes is not correct?

6. Isotopes are atoms of the same element that have different

7. Name the quantity being measured below:85 dam

8. How many electrons can fit in the first energy level?

9. The term precipitate is often associated with chemical change. What does precipitate refer to?

10. Which compound could rotate the plane of polarization of polarized light?

11. Which of the following is not a separation technique

12. What is the name of the process that uses electricity to separate the elements in a compound?

13. A substance does not have a fixed composition.

14. Which substance is chemically combined?

15. Graphene sheets burn at

16. A chemical property that refers to the energy released when a compound undergoes burning.

17. What is formed when an atom loses or gains an electron?

18. One example of physical properties

19. Water and Kool-Aid are mixed together. Hot water, coffee and sugar are mixed together. Which substance is the solvent in both?

20. What is the functionof water in the following equation? NaOH + HCl $\rightarrow$ NaCl + H2O

21. Which determines the mass of an element?

22. There are _____ alkali metals.

23. What is the chemical formula for Nitrogen Trioxide?

24. Which compound has the smallest molar mass?

25. PH measures the presence or what kind of ions?