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Questions and Answers
What is the oxidation state of aluminum in the compound Al(NO3)3?
What is the oxidation state of aluminum in the compound Al(NO3)3?
- +3 (correct)
- +2
- +5
- +1
What type of reaction is the process: Mg + H2O —> Mg(OH)2 + H2 + 430 kJ?
What type of reaction is the process: Mg + H2O —> Mg(OH)2 + H2 + 430 kJ?
- neutral
- exothermic (correct)
- catalytic
- endothermic
What is the role of zinc in the reaction: Zn(s) + HCl(aq) —> ZnCl2(aq) + H2(g)?
What is the role of zinc in the reaction: Zn(s) + HCl(aq) —> ZnCl2(aq) + H2(g)?
- oxidizing agent
- inert substance
- reducing agent (correct)
- catalyst
What is the oxidation number of bromine in the compound KBrO4?
What is the oxidation number of bromine in the compound KBrO4?
How many moles of CO2 are produced in the reaction: C5H12O(g) + 8O2(g) → 5CO2(g) + 6H2O(g) if 2 moles of C5H12O react?
How many moles of CO2 are produced in the reaction: C5H12O(g) + 8O2(g) → 5CO2(g) + 6H2O(g) if 2 moles of C5H12O react?
What is the correct balancing of the equation: NH4OH(aq) + Al(NO3)3(aq) → Al(OH)3(s) + NH4NO3(aq)?
What is the correct balancing of the equation: NH4OH(aq) + Al(NO3)3(aq) → Al(OH)3(s) + NH4NO3(aq)?
What is the oxidation state of Ag in the reactant side of the equation Al(NO3)3 (aq) + 3 Ag (s) → Al (s) + 3 AgNO3 (aq)?
What is the oxidation state of Ag in the reactant side of the equation Al(NO3)3 (aq) + 3 Ag (s) → Al (s) + 3 AgNO3 (aq)?
According to the activity series, which reaction will not occur as written?
According to the activity series, which reaction will not occur as written?
What is the unit of energy of activation?
What is the unit of energy of activation?
What is the molarity of 5.25 mL of a solution containing 0.00250 mole of CaCl2?
What is the molarity of 5.25 mL of a solution containing 0.00250 mole of CaCl2?
What is the number of moles of CaCl2 in 15.00 mL of 0.123 M CaCl2 solution?
What is the number of moles of CaCl2 in 15.00 mL of 0.123 M CaCl2 solution?
What happens to the rate of reaction when the concentration of C is doubled, given the rate law rate = k [C]?
What happens to the rate of reaction when the concentration of C is doubled, given the rate law rate = k [C]?
What is the correct equilibrium constant expression (Keq) for the reaction 2NO2 (g) 2NO (g) + O2 (g)?
What is the correct equilibrium constant expression (Keq) for the reaction 2NO2 (g) 2NO (g) + O2 (g)?
What is the concentration of Ba(OH)2 in the reaction 2 HBr + Ba(OH)2 → BaBr2 + 2 H2O?
What is the concentration of Ba(OH)2 in the reaction 2 HBr + Ba(OH)2 → BaBr2 + 2 H2O?
What is the ΔE for the reaction in the energy profile diagram?
What is the ΔE for the reaction in the energy profile diagram?
Which of the following reactions goes essentially to completion, based on the Keq value?
Which of the following reactions goes essentially to completion, based on the Keq value?
What is the effect of increasing the concentration of SO2 on the equilibrium 2SO2 (g) + O2 (g) 2SO3 (g) + heat?
What is the effect of increasing the concentration of SO2 on the equilibrium 2SO2 (g) + O2 (g) 2SO3 (g) + heat?
What is the effect of adding a catalyst to the equilibrium reaction 2SO2 (g) + O2 (g) 2SO3 (g) + heat?
What is the effect of adding a catalyst to the equilibrium reaction 2SO2 (g) + O2 (g) 2SO3 (g) + heat?
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