Chemistry Fundamentals Review

Front

What is significant figures?

Back

Significant figures are the digits in a number that contribute to its precision. This includes all non-zero digits, any zeros between significant digits, and trailing zeros in the decimal portion.

Front

How do you perform subtraction with significant figures?

Back

When subtracting, the result should be reported with the same number of decimal places as the measurement with the fewest decimal places.

Front

What should you do if chemicals get in your eyes?

Back

Rinse with water for at least 15 minutes and seek medical attention if necessary.

Front

How do you express a number in standard form?

Back

To express a number in standard form, write it as a product of a number between 1 and 10 and a power of 10.

Front

Convert 9.65 x 10^-4 to standard form.

Back

0.000965

Front

Convert 6.452 x 10^2 to standard form.

Back

645.2

Front

What is an oxidizer?

Back

An oxidizer is a substance that causes or promotes combustion by providing oxygen or another oxidizing agent.

Front

What is the difference between a base and an acid?

Back

Acids donate protons (H+) in a solution, while bases accept protons or donate hydroxide ions (OH-).

Front

What is the pH scale?

Back

The pH scale measures the acidity or basicity of a solution, ranging from 0 (very acidic) to 14 (very basic), with 7 being neutral.

Front

What is the law of conservation of mass?

Back

The law of conservation of mass states that mass is neither created nor destroyed in a chemical reaction.