Chemistry

catalyst: a substance that changes the speed of a chemical reaction without affecting the yield or undergoing permanent chemical change*

As you can see NO (nitrogen monoxide) did not undergo a permanent change.

*http://www.chem.purdue.edu/gchelp/gloss/catalyst.html


Lance,

Thank you for your prompt response. I know the definition of catalyst, but I am having trouble figuring out how to find the catalyst in a reaction.


Sarah: If one started with NO, and ended with NO, it was unchanged in the reaction. NO is the catalyst.

  1. 👍
  2. 👎
  3. 👁
  4. ℹ️
  5. 🚩

Respond to this Question

First Name

Your Response

Similar Questions

  1. Chemistry

    Which statement best describes the law of conservation of mass? A. Matter cannot be created or destroyed in a chemical reaction B. Reactants in a chemical reaction rearrange to form a new substance or substances C. Reactants and

  2. Chemistry

    Consider the reaction: 2CO(g) + O2(g) equilibrium 2CO2 (g) Write the equilibrium expression for this reaction. Keq = ?? Addition of a catalyst to this reaction would have what effect on the equilbrium? Addition of a catalyst to

  3. chemistry

    Substance A reacts spontaneously with substance B at room temperature. Substance A reacts with substance C at room temperature only in the presence of a catalyst. Which statement best explains this difference?(1 point) The

  4. Science

    1.)​CaCO3→CO2​+CaO A scientist heats 30 grams of calcium carbonate (CaCO3) in the chemical reaction shown. What is the total mass of the products?(1 point) A.)10 grams B.)15 grams C.)60 grams

  1. Chemistry

    For a one step reaction, the activation energy for the forward reaction is 40.0 kJ/mol and the enthalpy of reaction is -20.0 kJ /mol. Which statement below is true? a. The activation energy of the forward reaction would be

  2. Science

    Ethan is observing chemical and physical properties of a substance. He heats a substance and observes that the substance turns from a brown solid to a black powder. He refers to several chemistry journals that claim this

  3. Chemistry

    Which of the four factors affecting reaction rate is most important in each example below? Choose from among concentration, temperature, surface area, and catalyst. A? Extra dish soap is added to help cut the grease when washing a

  4. chemistry

    What are several reasons why the actual yield from a chemical reaction is not usually equal to the theoretical yield?

  1. Chemistry

    What does the symbol ∆H stand for? one Calorie given off by a reaction the heat capacity of a substance*** the heat of a reaction for a chemical reaction the specific heat of a substance

  2. Intergrated Science A

    Which answer choices best indicate that a substance has experienced a chemical change? Select all that apply. when the substance changes temperature when the substance changes shape when the substance changes volume when a new

  3. chemistry

    The rate law of the overall reaction. A + B -> C is rate = k[ A ]^2 Which of the following not increase the rate of a chemical reaction? a) increasing the temperature of the reaction b)increasing the concentration of reaction A

  4. chemistry

    The addition of a catalyst in a chemical reaction (A) increases the concentration of products at equilibrium. (B) increases the fraction of reactant molecules with a given kinetic energy. (C) provides an alternate path with

View more similar questions or ask a new question.