MANDATORY WINTER BREAK ASSIGNMENT

Front

What is a mixture?

Back

A mixture is a combination of two or more substances that are not chemically bonded together. Example: air is a mixture of gases.

Front

What is the formula to calculate volume using mass and density?

Back

Volume = Mass / Density

Front

What is the volume of a substance with a mass of 93.4 g and a density of 2.7 g/cm³?

Back

34.6 cm³

Front

What are significant figures?

Back

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

Front

How many significant figures are in the number 0.01020?

Back

4 significant figures.

Front

What is a compound?

Back

A compound is a substance made up of atoms of two or more different elements joined by chemical bonds. Example: water (H₂O) is a compound.

Front

What is a molecule?

Back

A molecule is the smallest unit of a chemical compound that retains its chemical properties, consisting of two or more atoms bonded together.

Front

What is the difference between a reactant and a product?

Back

Reactants are substances that undergo a chemical change, while products are the substances formed as a result of that change.

Front

What does ductile mean?

Back

Ductile refers to a material's ability to be stretched into a wire without breaking.

Front

What does malleable mean?

Back

Malleable refers to a material's ability to be hammered or pressed into shapes without breaking.