Basics
Chemistry
Chemistry (cont.)
Chemical Reactions
100

Anything that has mass and volume. 

What is matter?

100

When matter changes form but none of its chemical properties are changed. 

What is a physical change?
100

When a solid turns into a liquid. 

What is melting?

100

When two or more reactants combine to form a single product. 

What is a Synthesis Reaction?

200

The smallest unit of matter. 

What is an atom?

200

A property of mater that describes a substance's ability to participate in chemical reactions. 

What is a chemical property?

200

When a liquid becomes a solid. 

What is freezing?

200
Process by which one or more substances change to produce one or more different substances. 

What is a chemical reaction?

300

This does not have any charge. 

What is a neutron?

300

When energy is released as the byproduct of a reaction. 

What is an exothermic reaction?

300

When the particles of a solid speed up so rapidly that they pass straight from being a solid to becoming a gas. 

What is sublimation?

300

When one element (a radical) takes the place of another element in a molecule. 

What is a single-displacement reaction?

400

This has a negative charge. 

What is an electron?

400

When energy is absorbed to begin the chemical reaction. 

What is an endothermic reaction?
400

When a gas becomes a liquid. 

What is condensation?

400

When two elements swap places with each other in a chemical reaction. 

What is a double-displacement reaction?

500

This has a positive charge. 

What is a proton?

500

When the particles of a gas slow down at such a rate that it passes straight from being a gas and turns into a solid.

What is deposition?

500

When a liquid becomes a gas. 

What is evaporation?

500

When a single reactant breaks down into multiple products. 

What is a decomposition reaction?

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