Section: 7.3 Reaction Types. Identify the substance that is a reactant in all combustion reactants. Oxygen O 2 1
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1 Chapter 7.3 Review
2
3 Identify the substance that is a reactant in all combustion reactants Oxygen O 2 1
4 Explain how you can determine if a chemical reaction represents a single displacement reaction or a doubledisplacement reaction. A single-replacement reaction will have one compound and one element as reactants and one compound and one element as products, 2
5 Explain how you can determine if a chemical reaction represents a single displacement reaction or a doubledisplacement reaction. while a double-replacement reaction has two compounds as reactants and two compounds as products. 2
6 Describe what happens during a reduction/oxidation reaction. Electrons are transferred between elements during the reaction. The substance that gains electrons is reduced and the substance that loses electrons is oxidized. 3
7 Identify which element is reduced and which is oxidized in the following equations. a. Ag is reduced, Cu is oxidized b. Cu is reduced, Al is oxidized 4
8 Classify each of the following reactions. 2C 8 H O 2 16CO H 2 0 Combustion 5a
9 Classify each of the following reactions. Ca + S CaS Calcium + Sulfur Calcium Sulfide Synthesis 5b
10 Classify each of the following reactions. Ca 3 (PO 4 ) H 2 O 3 CaSO 4 + 2H 3 PO 4 Calcium Phosphate + Water Calcium Sulfate and Phosphoric Acid Double Replacement 5c
11 Classify each of the following reactions. SiO 2 + 2C Si + 2CO Silicon Dioxide + Water Silicon and Carbon monoxide Single Replacement 5d
12 Classify each of the following reactions. 2CaCO 3 2Ca + 2C + 3O 2 Calcium Carbonate Calcium + Carbon + Oxygen Decomposition 5e
13 Summarize each of the five general types of chemical reactions. Synthesis reactions join substances to make a new, more 6a complex compound.
14 Summarize each of the five general types of chemical reactions. Decomposition reactions break a compound into at least two products. In combustion reactions, a substance 6b
15 Summarize each of the five general types of chemical reactions. In combustion reactions, a substance reacts with oxygen. 6c
16 Summarize each of the five general types of chemical reactions. In single-replacement reactions, atoms of one element appear to take the place of atoms of another 6d element in a compound.
17 Summarize each of the five general types of chemical reactions. In double-replacement reactions, ions appear to be exchanged between compounds, producing a gas, a solid precipitate, or a molecular compound. 6e
18 Complete the table to identify the types of reaction each chemical equation represents. Some reactions may be classified in more than one way. 1
19 Complete the table to identify the types of reaction each chemical equation represents. Some reactions may be classified in more than one way. S 8 + O 2 8 SO 2 Sulfur Dioxide Synthesis Combustion 1a
20 Complete the table to identify the types of reaction each chemical equation represents. Some reactions may be classified in more than one way. 6 Li + N 2 2 Li 3 N Lithium Nitride Synthesis 1b
21 Complete the table to identify the types of reaction each chemical equation represents. Some reactions may be classified in more than one way. 6 Li + N 2 2 Li 3 N Lithium Nitride Synthesis 1b
22 Complete the table to identify the types of reaction each chemical equation represents. Some reactions may be classified in more than one way. AgNO 3 + KBr AgBr + KNO 3 Silver Nitrate + Potassium Bromide -> Silver Bromide + Potassium Nitrate Double Replacement 1c
23 Complete the table to identify the types of reaction each chemical equation represents. Some reactions may be classified in more than one way. CaCO 3 CaO + CO 2 Calcium Carbonate -> Calcium Oxide + Carbon Dioxide Decomposition 1d
24 Complete the table to identify the types of reaction each chemical equation represents. Some reactions may be classified in more than one way. Mg +Pb(NO 3 ) 2 Pb + Mg(NO 3 ) 2. Magnesium + Lead (ii) Nitrate -> Lead + Magnesium Nitrate Single Replacement 1e
25 How does oxidation differ from reduction? Oxidation Substance loses electrons Reduction 2 Substance gains electrons
26 Substances in a fire extinguisher help prevent air from reaching a burning material. Why would this be a good way to fight a fire? It separates the fire from the oxygen, ending the reaction 3
27 Substances in a fire extinguisher help prevent air from reaching a burning material. Why would this be a good way to fight a fire? Combustion Reactions are oxygen dependent 3
28 Why must reduction take place whenever oxidation occurs? In oxidation, a substance loses electrons to another substance. This substance gains an electron and is reduced. 4
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