Chemistry

Chemistry, 21.07.2019 14:30, lrich20200

Know how the rate of a chemical reaction is defined in terms of reactants or products.

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Chemistry, 01.10.2019 22:00, juliana0122

Which expression represents the ∆h for a chemical reaction in terms of the potential energy, pe, of its products and reactants? a) pe of products + pe of reactants b) pe of products – pe of reactants c) pe of reactants × pe of products d) pe of products ÷ pe of reactants e) pe of reactants – pe of products

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Chemistry, 03.10.2019 07:00, jboii11

which expression represents the ∆h for a chemical reaction in terms of the potential energy, pe, of its products and reactants? a. pe of products + pe of reactants b. pe of products – pe of reactants c. pe of reactants × pe of products d. pe of products ÷ pe of reactants e. pe of reactants – pe of products

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Chemistry, 27.10.2019 09:43, jeffcarpenter

1.what effect would adding water (h2o) have on this reaction over time? (nh4)2co3(s) ⇌ 2nh3(g) +co2(g) +h2o(g) a. the concentration of products would increase, and the concentration of reactants would decrease. b. the concentrations of both products and reactants would increase. c. the concentration of products would decrease, and the concentration of reactants would increase. d. the concentrations of both products and reactants would decrease. 2.which statement is true of a catalyst? a. it behaves as a reactant in a chemical reaction. b. it increases the temperature of a reaction. c. it decreases the concentration of the products. d. it accelerates the reaction rates of a mixture. 3.which statement is always true about a reversible chemical reaction? a. the concentration of reactants is higher than that of the products. b. the products can form reactants, and the reactants can form products. c. the concentrations of reactants and products are not constant. d. the concentration of the products is higher than that of the reactants. 4.classify the outcomes based on whether they are caused by adding or removing a reactant from a chemical reaction. -the rate of the forward reaction increases. -the rate of the reverse reaction increases. -the concentration of products increases. -the concentration of products decreases.

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