A Catalyst Alters the Rate of a Chemical Reaction By

question 31

Multiple Choice

A catalyst alters the rate of a chemical reaction by:

• A)always providing a surface on which molecules react
• B)changing the products formed in the reaction
• C)inducing an alternate pathway for the reaction with generally lower activation energy
• D)changing the frequency of collisions between molecules
• E)increasing the number of collisions of molecules

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Definitions:

Step-Wise Costs

Costs that remain fixed over a range of activity but will increase in a step-like manner when a certain threshold is reached.

Break-Even Points

The volume of production or sales at which total revenues equal total expenses, resulting in no net profit or loss, used for financial analysis and planning.

Break-Even Point

The financial stage where total revenues equal total expenses, resulting in neither profit nor loss.

Direct Labour Costs

The wages and other expenses directly tied to the manufacturing of products or services, including wages of workers directly involved in production.