Review Questions – Chemical Names and Formulas
Chapter 9
1. Consists of a single atom with a positive or negative charge.
2. A postively charged ion.
3. What is the charge on ions formed from the alkali metal group?
4. What is the formula and charge for the aluminum ion?
5. A negatively charged ion?
6. What is the charge on the ions formed from the halogen family?
7. Write the formula and charge for the nitride ion.
8. The ions that are composed of more than one atom are called?
9. Which does not have a -2 charge? sulfite, dichromate, cyanide, or silicate.
10. What is the formula and charge for the permanganate ion?
11. What is the formula and charge for the phosphite ion?
12. Which two polyatomic ions end in ide?
13. Which polyatomic ion is the only cation?
14. Binary means the compound is made of ______ elements.
15. Binary ionic compounds are made of what two type of elements?
16. What is the correct formula for tin (II) fluoride?
17. What is the correct formula for aluminum oxide?
18. What is the correct formula for calcium phosphate?
19. What is the correct formula for ammonium sulfate?
20. What is the correct formula for chromium (III) nitirite?
21. Name the following binary ionic compounds:
1. NaF
2. Mg(NO3)2
3. Fe2(C2O4)3
22. What is the prefix used for the number 6 to name molecular compounds?
23. What is the formula for sulfur trioxide?
24. What is the formula for tetraphosphorus decaoxide?
25. Write the names for the following molecular compounds
1. N2O5
2. Cl2O8
3. ClF3
26. What is the formula for nitric acid?
27. What is the formula for hydrochloric acid?
28. What is the law that states "whenever the same two elements form more than one
compound, the different masses of one element that combine with the same mass
of the other element are in the ratio of small whole numbers".
29. Compounds made from two nonmetals.
30. The law that states that in samples of any chemical compound, the masses of the
elements are always in the same proportions.
ANSWERS:
1. monatomic ion
2. cation
3. 1+
4. Al3+
5. anion
6. 17. N38. polyatomic ion
9. cyanide
10. MnO411. PO3312. cyanide and hydroxide
13. ammonium
14. 2
15. metal and a nonmetal
16. SnF2
17. Al2O3
18. Ca3(PO4)2
19. (NH4)2SO4
20. Cr(NO2)3
21. sodium fluoride, magnesium nitrate, iron (III) oxalate
22. hexa
23. SO3
24. P4O10
25. dinitrogen pentaoxide, dichlorine octaoxide, chlorine trifluoride
26. HNO3
27. HCl
28. Law of multiple porportions
29. molecular
30. Law of definite proportions