If a Chemist Wishes to React a Solid with a Liquid

question 16

Multiple Choice

If a chemist wishes to react a solid with a liquid, which of the following will be the least effective in speeding up the reaction?

• A) adding more liquid reactant
• B) grinding the solid to a form a powder
• C) dissolving the solid and the liquid in a solvent
• D) using the frozen form of the liquid

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Definitions:

Directional

In statistics, directional indicates that a hypothesis specifies the direction of an expected difference or relationship.

Alternative Hypothesis

In statistical testing, the hypothesis that proposes there is a statistically significant relationship or difference between two variables, as opposed to the null hypothesis.

Standard Deviations

A measure that quantifies the amount of variation or dispersion of a set of data values from the mean.

Standard Error

The standard deviation of the sample mean distribution, often used to estimate the accuracy of the sample mean compared to the population mean.