Chemistry Quiz 25 (25 MCQs)

Quiz Instructions:

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1. This element is the backbone of all organic molecules _____

2. Neutrons and protons make up the atom's _____

3. Discovered the nucleus of the atom through the Gold Foil Experiment

4. What state of matter takes the entire shape of its container

5. An _____ reaction is when more energy is absorbed than is released. This energy can be in the form of light, heat, electricity, etc.

6. Theories are considered successful only if they

7. How do you calculate mass number?

8. One of several forms of a single element, which contains the same number of protons, but different numbers of neutrons

9. Which is true about biomolecules?

10. A + 2H2O $\rightarrow$ 2NaOH+ H2 How many grams of hydrogen are produced if 120 g of Na are available?

11. Atoms in molecules share pairs of electrons when they make

12. An object's weight is a measure of

13. What is the mole used for?

14. What is the correct name of SO2?

15. Neutrons and protons are found in the

16. Which set of symbols represents atoms with valence electrons in the same electron shell or energy level?

17. Which one of the following sets of pH values is correct?

18. Which set is in order from weakest to strongest intermolecular attractions

19. What is the chemical formula for ammonia?

20. Elements foundon the lower left side of the Periodic Table are classified as

21. The following are the physical properties of matter EXCEPT

22. The bond where electrons are donated between a metal and a non-metal.

23. What parts of an atom have mass?

24. What type of charge does an electron have?

25. In the nucleus of an atom _____ is present