Th answer is C.
A catalyst is an organic or inorganic substancec which will increase the rate of chemical reaction. It will not be used up in the chemical reaction.
Which statement does not describe a catalyst? A) A catalyst may be an inorganic substance. B)...
12) Which of the following is true of a catalyst? a) A catalyst is a substance b) A catalyst, when added to a reaction system, increases the rate at which the reaction occurs c) A catalyst is neither produced nor consumed as a reaction proceeds d) Both b and c e) Both a and b and c
12) Which of the following is true of a catalyst? a) A catalyst is a substance b) A catalyst, when added to a reaction system, increases the rate at which the reaction occurs c) A catalyst is neither produced nor consumed as a reaction proceeds d) Both b and c e) Both a and b and c
Which statement below is true only for a homogeneous catalysts? a. A homogeneous catalyst increase the rate of reaction by providing an alternative pathway with a lower activation energy. b. A homogeneous catalyst is a solid substance to which liquid or gaseous reactants will adhere to the surface of the catalyst. c. A homogeneous catalyst is when the catalyst is in the same physical state as the reactant. d. A homogeneous catalyst will eventually be consumed in a chemical reaction.
11) Which of the following is true of a catalyst? a) A catalyst is a substance b) A catalyst, when added to a reaction system, increases the rate at which the reaction occurs c) A catalyst is neither produced nor consumed as a reaction proceeds d) Both b and c e) Both a and b and c 12) In the Arrhenius equation, the value for A, the pre-exponential factor, depends on a) the collision frequency (number of collisions per unit...
2. A catalyst is a substance that speeds up a chemical reaction, while it does not undergo chemical change and is not part of the chemical equation for this reaction. a. True b. False
Describe in detail what a catalyst does to increase the reaction rate, and demonstrate this effect with a diagram.
QUESTION 3 Which of the following is true regarding the addition of a catalyst to a reaction? O A. The rate of the reverse reaction will decrease B. The AG of a reaction will decrease C. The equilibrium favors the products upon catalyst addition OD. The energy of the activated complex will decrease QUESTION 4 What effect would the addition of a catalyst have to the following reaction? B Energy A Reaction Progress OA. "B" would increase OB. "C" would...
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11) Which of the following is true of a catalyst? a) A catalyst is a substance b) A catalyst, when added to a reaction system, increases the rate at which the reaction occurs C) A catalyst is neither produced nor consumed as a reaction proceeds d) Both b and c e) Both a and band c
A reaction that produces ammonia is shown below. How does the catalyst used in the industrial production of ammonia affect the reaction rates of the forward and reverse reactions? N2+3H2⇌2NH3 Select the correct answer below: 1. forward rate decreases, reverse rate increases 2. forward rate increases, reverse rate decreases 3. both the forward and reverse rates decrease 4. both the forward and reverse rates increase
Topic : Sampling, Gravimetry, Equilibrium, Titrations 1/ Fusion (dissolving in hot, molten inorganic flux) is applied for the following reason: (A) The analyte is an organic substance that is not soluble in acids. (B) The analyte is an inorganic substance that is not soluble in acids. (C) The analyzed material has a lot of impurities. (D) The analyzed material contains volatiles. (E) Interferences have to be removed from the sample. 2/ Wet ashing is a sample preparation procedure in which:...