Chemistry Quiz 32 (25 MCQs)

Quiz Instructions:

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1. Studying the refining process of metallic ores (rocks).

2. State of matter that has a definite shape and a definite volume.

3. The type of reaction that releases energy as heat is called

4. Melting is _____

5. How are mixtures combined?

6. Group of elements whose ending e-configuration is p2. 4 electrons in outer shell. Made up of a nonmetal, metalloids and metals.

7. Flammability is a material's ability to burn in the presence of _____

8. What would you be able to do with a filter, magnet, or strainer when thinking about a mixture?

9. A compound can be physically separated into its elements.

10. What is the most dense metal?

11. C12H22O11 how many many elements?

12. How do the following two elements bond together? Al3+ O2-

13. The atomic mass of an element is equal to

14. Which of the following indicate that a chemical reaction has occurred?

15. What are the groups in the periodic table?

16. The number of protons is called.

17. The _____ are either elements or compounds which are present prior to a chemical reaction.

18. Alters a substance without changing its composition

19. If a material contains three elements joined in a fixed proportion, it is a _____

20. Name the quantity being measured below:55 kg

21. The smallest building block of all matter in the universe.

22. Which gas was first discovered on the Sun and later on the Earth?

23. Branch of chemistry that is concerned with the art and science of determining what matter is and how much of it exists.

24. The amount of matter in an object is a measure of the object's _____

25. Which theory says that all matter is composed of atoms which give characteristic properties to matter?