Read the questions carefully before answering.
1. An equation which shows the reactions of molecules where all species are present which exist as a whole units or molecules.
a. molecular equation
b. ionic equation
c. net ionic equation
d. chemical reaction
2. An equation which shows what happens to the substances in solution and shows the dissolved species.
a. molecular equation
b. ionic equation
c. net ionic equation
d. chemical reaction
3. An equation that shows only the species that take part in the reaction.
a. molecular equation
b. ionic equation
c. net ionic equation
d. chemical reaction
4. Are ions that are included in the reactant side and in the product side but not actually included in the overall reaction.
a. polyatomic cations
b. polyatomic anions
c. monoatomic cations
d. spectator ions
5. Which of the following substances should be written in molecular form in an ionic equation?
a. HCl
b. H2O
c. HNO3
d. H2SO4
6. Which of the following is completely dissociated in water?
a. HNO3
b. HNO2
c. HF
d. NH3
7. What is the net ionic equation when aqueous CuCl2 and Na2S are mixed?
a. Cu + S = CuS
b. CuCl2 + S2- = CuS + 2Cl-
c. Cu2+ + S2- = CuS
d. Na2S + Cu2+ = CuS + 2Na+
8. Which of the following would likely dissolve in water?
a. NaNO3
b. CaCO3
c. BaSO4
d. AgCl
9. What would happen if aqueous solutions of sodium nitrate and ammonium chloride were mixed?
a. A precipitate of ammonium chloride would form.
b. A precipitate of sodium chloride would form.
c. Neither sodium nitrate nor ammonium chloride would dissolve.
d. Nothing would happen.
10. Which ion/s is/are spectator ions in the reaction between aqueous solution of CoBr2 and AgNO3?
a. Co+2 and NO3-
b. NO3- and Br-
c. Co+2 and Ag+
d. Br-
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