Show:
Mix it Up
Solutions
Balancing Act
Changing Act
Miscellaneous
100
When one or more substances are changed into new substances is called this.
What is a chemical reaction?
100

The part of solution that is present in the largest amount.

What is the solven?

100
When the number of atoms are equal on both sides of the equation, this law has been fulfilled.
What is the Law of Conservation of Mass
100

A change that alters the form or appearance of a substance.

What is a physical change?

100
When energy is released as heat during a chemical reaction it is called this.

What is exothermic?

200
When the number of atoms is equal on each side we say that the equation is this.
What is balanced?
200

When heat is produced, light is emitted, or a precipitate is formed this is an indication of this

What is a chemical reaction/change?

200

These 3 things are essential in writing a chemical equation.

What are reactants, an arrow, and products?

200

A change in matter that produces one or more new substances.

What is a chemical change?

200

When more energy is needed during a chemical reaction it is called this?

What is an endothermic reaction?

300

A characteristic of this mixture is that they are not spready evenly throughout.

What is a heterogenous mixture?

300

In the chemical reaction, Mg + O -> MgO, the compound MgO is located on this side of the equation.

What is the product side?

300

Balance the following chemical equation. Fe + O2 --> Fe2O3

4 Fe + 3O2 --> 2Fe2O3

300

Substances that undergo chemical changes in a reaction are called this.

What are reactants?

300

CsF is an example of this

What is a compound?

400

A mixture with particles that can be seen and easily separated by settling or filtration.

What is a suspension?

400

This is the substance that is dissolved by the solvent.

What is a solute?

400
Balance the following equation. You must show all work and simplify your answer! Li + Br2 --> LiBr
2Li + Br2 --> 2LiBr
400

Substances that form during a chemical reaction are called this. 

What are products?

400

During this reaction the substances are in an area where matter can enter and escape.

What is an open system?

500
A mixture that contains small, undissolved particles that do not separate or settle out if the mixture is undisturbed.

What is a colloid?

500

This is the measure of how much solute will dissolve in a solvent.

What is solubility?

500

Balance the following equation.  C6H6 + O2 --> CO2 + H2O

2C6H6 + 15O2 --> 12CO2 + 6H2O

500

What are at least three evidences you can point to in order to show a chemical reaction occurred?

What is a color change, gas production, or precipitate was formed?
500

Is this a decomposition or a synthesis reaction...

2Mg + O2 --> 2MgO

What is a synthesis reaction?