Chemistry Quiz 34 (25 MCQs)

Quiz Instructions:

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1. Each element of the periodic table is composed of how many atoms?

2. These substances delay the rate of chemical reaction.

3. What is an organic Compound?

4. Elements which are shiny, conduct electricity and heat are called

5. When becoming an ion, an element with 6 valence (outer) electrons would have a charge of _____

6. Which one of the following is a chemicalproperty of matter?

7. How is 0.00052 written in scientific notation?

8. What are the three particles that make up all atoms?

9. How many structural isomers exist with the formula C3H5Cl3?

10. The branch of analytical chemistry that answers the question what is present?

11. The production of useful substances by use of technology is studied under which branch of chemistry?

12. These contain only one kind of atom.

13. Which type of reaction will feel cold?

14. Which of the following is a type of safe laboratory procedure?

15. How many atoms of aluminum are on each side of the following equation:4Al + 3O2 $\rightarrow$ 2Al2 O3

16. Any part of a sample with uniform composition and properties is called a phase

17. What is the simplest form that cannot be broken down to anything simpler?

18. What device would you use to measure the mass of an object?

19. What is the meaning of green technology?

20. What type of bond occurs between atoms that share electrons?

21. Elements combine chemically to form _____

22. The molecular formula for Ammonium carbonate is

23. Which subatomic particle has a neutral charge.

24. What is the symbol of Cobalt

25. Which variable is held constant during an experiment?