To Find the New Amount Directly in Percent Problems

question 46

Multiple Choice

To find the new amount directly in percent problems:

• A) for decreases: multiply (100% - rate of increase) × base
• B) for increases: multiply (100% + rate of increase) × base
• C) all of these are correct
• D) new amount = rate of new amount x original amount

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Definitions:

Line-Wedge Structure

A representation of a molecule in 3-D, where lines and wedges depict bonds in plane, coming out of the plane, and going behind the plane respectively.

Stereochemistry

The study of the spatial arrangement of atoms in molecules and the impact of this arrangement on the physical and chemical properties of those molecules.

Racemic Alanine

A mixture of equal amounts of the two enantiomers of alanine, an amino acid, showing no optical activity due to the internal compensation of chiralities.

Ethanol

A volatile, flammable, colorless liquid alcohol, commonly used as a solvent and intoxicant.