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Answers (2) C (13) C (3) B (14) D (4) C (15) D (5) B (16) D (6) A (17) A (7) C (18) D (8) A (19) B (9) D (20) D (10) A (21) A (11) B (22) B (12) C
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What are the reactants in the following chemical equation:
Zn + CuSO4 ZnSO4 + Cu iRespond Question F Multiple Choice A.) zinc and copper B.) zinc sulfate and copper C.) zinc and copper (II) sulfate D.) only zinc E.)
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What are the products in the following chemical equation:
Multiple Choice iRespond Question What are the products in the following chemical equation: Zn + CuSO4 ZnSO4 + Cu A.) zinc and copper B.) zinc sulfate and copper C.) zinc and copper (II) sulfate D.) only zinc E.)
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Chemical equations must be balanced to satisfy ____.
iRespond Question F Multiple Choice A.) the law of definite proportions B.) the law of multiple proportions C.) the law of conservation of mass D.) Avogadro’s principle E.)
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4Fe + 3O2 2X Which compound is represented by X? A.) FeO B.) Fe2O3
Given the incomplete equation: 4Fe + 3O2 2X Which compound is represented by X? iRespond Question F Multiple Choice A.) FeO B.) Fe2O3 C.) Fe3O2 D.) Fe3O4 E.)
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CaSO4 + AlCl3 Al2(SO4)3 + CaCl2
F Multiple Choice iRespond Question CaSO4 + AlCl3 Al2(SO4)3 + CaCl2 What is the coefficient of Al2(SO4)3 when the equation is completely balanced using the smallest whole-number coefficients? A.) 1 B.) 2 C.) 3 D.) 4 E.)
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Given the incomplete equation:
2N2O5(g) Which set of products completes and balances the incomplete equation? iRespond Question F Multiple Choice A.) 2N2(g) + 3H2(g) B.) 2N2(g) + 2O2(g) C.) 4NO2(g) + O2(g) D.) 4NO(g) + 5O2(g) E.)
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Given the unbalanced equation:
F Multiple Choice iRespond Question Given the unbalanced equation: Al + O2 Al2O3 When this equation is completely balanced using smallest whole numbers, what is the sum of the coefficients? A.) 9 B.) 7 C.) 5 E.) D.) 4
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is an example of which type of reaction?
The equation 2C3H7 + 9O2 6CO2 + 8H2O is an example of which type of reaction? iRespond Question F Multiple Choice A.) single-replacement reaction B.) double-replacement reaction C.) decomposition reaction D.) combustion reaction E.)
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H3PO4 + 3KOH K3PO3 + 3H2O is an example of which type of reaction?
The equation H3PO4 + 3KOH K3PO3 + 3H2O is an example of which type of reaction? iRespond Question F Multiple Choice A.) double-replacement reaction B.) combination reaction C.) decomposition reaction D.) single-replacement reaction E.)
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is an example of which type of reaction?
The equation Mg(s) + 2HCl(aq) MgCl2(aq) + H2(g) is an example of which type of reaction? iRespond Question F Multiple Choice A.) combination reaction B.) single-replacement reaction C.) decomposition reaction D.) double-replacement reaction E.)
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is an example of which type of reaction?
The reaction 2Fe + 3Cl2 2FeCl3 is an example of which type of reaction? iRespond Question F Multiple Choice A.) combustion reaction B.) single-replacement reaction C.) combination reaction D.) decomposition reaction E.)
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In a combustion reaction, one of the reactants is ____.
iRespond Question F Multiple Choice A.) hydrogen B.) nitrogen C.) oxygen D.) a metal E.)
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Which of the following elements is diatomic?
iRespond Question F Multiple Choice A.) sulfur B.) neon C.) phosphorus D.) iodine E.)
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What is the correct formula for calcium nitride?
iRespond Question F Multiple Choice A.) CaN B.) Ca3Ni2 C.) Ca2N3 D.) Ca3N2 E.)
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nitrogen trifluoride nitrogen + fluorine
Multiple Choice iRespond Question If you rewrite the following word equation as a balanced chemical equation, what will the coefficient and symbol for fluorine be? nitrogen trifluoride nitrogen + fluorine A.) 6F2 B.) F3 C.) 6F D.) 3F2 E.)
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What is the charge on copper in the formula CuNO3?
iRespond Question F Multiple Choice A.) Cu+1 B.) Cu+2 C.) Cu+3 D.) Cu+4 E.)
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What is the charge on lead in the formula Pb(CO3)2
iRespond Question F Multiple Choice A.) Pb+1 B.) Pb+2 C.) Pb+3 D.) Pb+4 E.)
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In order for the reaction 2Al + 6HCl 2AlCl3 + 3H2
to occur, which of the following must be true? iRespond Question F Multiple Choice A.) Al must be above Cl on the activity series. B.) Al must be above H on the activity series. C.) Heat must be supplied for the reaction. D.) A precipitate must be formed. E.)
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Complete a balanced equation for the following reaction.
Ag(s) + KNO3(aq) iRespond Question F Multiple Choice A.) AgNO3 + K B.) AgK + NO3 C.) AgKNO3 D.) No reaction E.)
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F Multiple Choice iRespond Question A double-replacement reaction takes place when aqueous Na2CO3 reacts with aqueous Sn(NO3)2. You would expect one of the products of this reaction to be ________. A.) NaNO3 B.) NaSn C.) Sn(CO3)2 D.) CNO3 E.)
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iRespond Question F What is the balanced chemical equation for the reaction that takes place between bromine and sodium iodide? Multiple Choice A.) Br2 + NaI NaBr2 + I B.) Br2 + 2NaI 2NaBr + I2 C.) Br + NaI2 NaBrI2 D.) Br + NaI2 NaBr + I2 E.)
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