Chemistry Review QuestionsClick on the links below to find the answer to each of these questions. 1. Define the following (click on the word to view the answer): 2. What is an element? Is water an element? Why or why not? [answer] 3. What is the smallest particle of an element that still retains the properties of the element? [answer] 4. Name the six most common elements found in living organisms. [answer] 5. Name the particles found in the nucleus of an atom. [answer] 6. Name the kind of charge that is found on each of the subatomic particles discussed in class. [answer] 7. Tell how the number of protons compares to the number of electrons in an atom. [answer] 8. What is the atomic mass of each of the subatomic particles discussed in class? [answer] 9. Be able to tell how many electrons an atom has if you are given the number of protons. [answer] 10. Be able to tell how many electrons are in each electron shell if you are given the total number of electrons. [answer] 11. What determines the chemical bonding characteristics of an atom? [answer] 12. What is an ionic bond? [answer] 13. What is the charge distribution on two ions after forming an ionic bond? [answer] 14. How does the number of electrons in an atom compare to the number of electrons in an ion of the same element? [answer] 15. Write the atomic symbol of a calcium ion. [answer] 16. What is a covalent bond? [answer] 17. Be able to tell the maximum number of covalent bonds an atom will form if you are given the number of electrons in its outer shell. [answer] 18. Be able to draw single, double, and triple covalent bonds by using a straight line to represent a bond. [answer] 19. When given a chemical equation, be able to identify the reactants and products. [answer] 20. If given a chemical equation, be able to determine if it is balanced or not. [answer] 21. What is oxidation? What is reduction? Do they occur together? Why or why not? [answer] 22. Describe how water molecules interact with each other. [answer] 23. Describe how water molecules interact with other polar molecules or ions. [answer] 24. How does the amount of energy need to change the temperature of water compare to that needed to change the temperature of other liquids? [answer] 25. Describe what happens to the density of water as temperature decreases. [answer] 26. What happens when water ionizes? [answer] 27. What is the pH of water? Why is it this pH? [answer] 28. What is pH? On the pH scale, what range of numbers indicate acid? What range of numbers indicate base? [answer] |
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