Chemical Equations Test Review Sheet 1. You are responsible for knowing the definition of the following vocabulary terms: a. chemical reaction e. decomposition reaction b. chemical equation f. single-replacement reaction c. coefficient g. double-replacement reaction d. synthesis reaction h. combustion reaction Learning Target Students will write balanced chemical equations. 2. Balance the following chemical equations. a. ____ KF + ____ Br2 à ____ KBr + ____ F2 b. ____ AlBr3 + ____ K2SO4 à ____ KBr + ____ Al2(SO4)3 c. ____ CH4 + ____ O2 à ____ CO2 + ____ H2O d. ____ Na3PO4 + ____ CaCl2 à ____ NaCl + ____ Ca3(PO4)2 e. ____H3PO4 à ____P4O10 + ____H2O f.
____ K + ____ Cl2 à ____ KCl
g. ____ Al + ____ HCl à ____ H2 + ____ AlCl3 h. ____ P + ____ F2 à ____ PF3 i.
____ NaClO3 à ____ NaCl + ____ O2
3. Write and then balance the chemical equations. a. sulfur + iron à iron(III) sulfide
c. water + potassium à hydrogen [H2] + potassium oxide
Learning Target Students will classify reactions as synthesis, decomposition, single-replacement, doublereplacement, or combustion. 4. Classify the equations in problems 2 or 3 as synthesis [S], decomposition [D], single-replacement [SR], double-replacement [DR], or combustion [C]. Learning Target Students will predict/write formulas for chemical reactions when given the reactants. 5. Predict products and write balanced equations for the following SYNTHESIS reactions. a. sodium + phosphorus
b. calcium + oxygen [O2]
c. aluminum + chlorine [Cl2]
d. potassium + sulfur
6. Predict products and write balanced equations for the following COMBUSTION reactions. a. combustion of propane - C3H8
b. combustion of pentyne - C5H8
c. combustion of 1-butanol - C4H10O
7. Use the activity series to first decide if the following SINGLE-REPLACEMENT will occur. Write ‘No Reaction’ for the ones that will not occur; predict products and write balanced equations for the ones that will occur. a. _____Al + _____AgNO3 à b. _____Cu + _____KNO3 à c. _____Mg + _____HNO3 à d. _____Ca + _____Pb(NO3)2 à e. _____Na + _____Cu(NO3)2 à 8. Predict the products for the following DOUBLE-REPLACEMENT reactions. You must include the states of matter of the products to decide if a reaction will occur. Write ‘No Reaction’ for the ones that will not. a. _____Ca(NO3)2 (aq) + _____Na2CO3 (aq) à b. _____K3PO4 (aq) + _____Mg(NO3)2 (aq) à c. _____NaOH (aq) + _____K2SO4 (aq) à d. _____AlCl3 (aq) + _____Pb(NO3)2 (aq) à e. _____MgSO4 (aq) + _____NaCl (aq) à
