7th Grade Q2 Exam Review

Anything that has mass and volume is called?

• Pure Substance

• Molecule

• Matter

• Atom

Matter has two types of mixtures: homogenous and heterogenous. What type of mixture does the image display?

• Homogenous Mixture

• Heterogenous Mixture

True or False. A homogeneous mixture has substances that are so evenly mixed that you can’t see the different parts.

• True

• False

True or False. An example of a homogeneous mixture are coffee, guacamole, and soy sauce.

• True

• False

True or False. A heterogeneous mixture is made up of particles that you CAN’T usually see and they can easily be separated.

• True

• False

True or False. An example of a heterogeneous mixture is are salad, trail mix, and cereal.

• True

• False

True or False. A mixture is two or more substances NOT chemically combined.

• True

• False

An atom is the basic particle in which all elements are made. A group of two or more atoms held together by chemical bonds is called a ________________ .

• Pure Substance

• Molecule

• Matter

• Atom

A solution is a mixture containing a solvent and at least one solute, and it has the same properties throughout. In the image, label A indicates the ______________ .

• Solution

• Solvent

• Solute

In a chemical equation, the number that tell us the amount of molecules present is called a ____________.

• Coefficient

• Subscript