7th Grade Interim #2 Review

Chemical Reaction

• a process that involves rearrangement of the molecular or ionic structure of a substance, as opposed to a change in physical form or a nuclear reaction.

• A reaction in which energy is observed by matter and feels warm by touch

• an action performed or a feeling experienced in response to a situation or event.

Subscript

• Something in a equation

• (of a letter, figure, or symbol) written or printed below the line.

• letter, figure, or symbol.

Temperature

• Average kinetic energy of all particles in a material which is measured by using a thermometer

• Energy that an object, or atom of an object , has due to it's motion

• Using to describe a substance that is not chemically reactive.

What is two or more substances that are together in the same place but their atoms are not chemically bonded.

• Mixture

• Solution

• Colloid

• Suspension

___________________ is a measure of how much solute can dissolve in a given solvent at a given temperature.

• Solute

• Solvent

• Solubility

• Solution

What type of reaction does this graphic represent?

• Decomposition
• Double-replacement
• Single-replacment
• Synthesis

What type of reaction does this graphic represent?

• Decomposition
• Double-replacment
• Single-replacment
• Synthesis

In a ___________change, a substance changes into a different substance.

• Physical

• Chemical

Tags

NGSS.MS-PS1-2

NGSS.MS-PS1-5

What are reactants?

• The chemicals that start the reaction.

• The chemicals that the reaction produced.

• The chemicals that are on the right side of the arrow.

Tags

NGSS.MS-PS1-2

The reactants are on the left side of the chemical equation.

• True
• False