# CHEM 1 Prep Test

Students are strongly encouraged to be familiar with the following concepts prior to taking Chem 1.

## Basic Math and Algebra

• Decimals
• Adding, Subtracting, Multiplying, and dividing Mixed Numbers and Fractions
• Simplifying Fractions and Complex Fractions
• Changing Fractions to Decimals
• Square Roots and Cube Roots
• Number operations & properties (Associative, commutative, distributive properties)
• Order of Operations
• Rounding Numbers
• Solving for unknowns

## Numbers in Science

• Scientific Notation
• Adding and Subtracting fractions and exponents
• Multiplying and Dividing fractions and exponents
• Square roots

## Ratios and Proportions

• Ratio: The relative size of two quantities expressed as the quotient of one divided by the other; the ratio of a to b is written as a:b or a/b.
• Proportion: equality between two ratios

## Units, Dimensions, and Conversions

• Units and Dimensions
• Combinations of Units
• Prefixes on Units
• Unit Conversions (i.e. dimensional analysis)

## Simple Statistics

• Arithmetic Mean, Error, Percent Error, and Percent Deviation
• Standard Deviation

## Metric System

• Units of mass, length, and volume in the metric system

## Logarithms

• Logs and anti logs to the base 10

Source: Mathematics In Chemistry (verbatim) & Mark Vidensek