A Catalyst Speeds Up a Chemical Reaction as a Result

question 85

Multiple Choice

A catalyst speeds up a chemical reaction as a result of which of the following?

• A) It increases the number of collisions among reacting molecules.
• B) It makes the reaction more endothermic.
• C) It makes the reaction more exothermic.
• D) It provides an alternative reaction pathway.

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Definitions:

Groundwater

Water held underground in the soil or in pores and crevices in rock.

Fractures

Breaks in rock or mineral without the movement parallel to the surface of the break, often a result of stress exceeding the strength of the material.

Underground Lakes

Bodies of water that exist beneath the Earth's surface, often found in caves or formed by natural aquifers.

Porosity

A measure of how much of a rock is open space, which can hold water, oil, or gas.