Vocabulary
When one or more substances are changed into new substances.
What is a chemical reaction?
In chemical reactions, the ----> symbol stands for this.
What is produces?
OR
What is yields?
When coefficients are used to balance an equation, this law has been fulfilled.
What is the law of conservation of mass?
This is a substance that is added to a chemical reaction to slow down its rate.
What is an inhibitor?
When heat is produced, light is emitted, or a precipitate is formed, it is an indication of this.
What is a chemical reaction taking place?
When the number of atoms is equal on each side of a chemical equation, it is called this.
What is balanced?
This separates two or more reactants OR products from each other in a chemical equation.
What is a plus sign?
These are numbers used to help balance chemical equations.
What are coefficients?
The name of this compound: CaCl2
What is calcium chloride?
Raising this causes particles of reactants to move more quickly and therefore speeds up the rate of a chemical reaction.
What is temperature?
This law states that mass cannot be created or destroyed in a chemical reaction.
What is the law of the conservation of mass?
In the chemical reaction, Mg + O --> MgO, the compound MgO is located on this side of the equation (not looking for left or right side).
What is the product side?
Balance the following chemical equation:
Fe + O2 --> Fe2O3
What is
4 Fe + 3O2 --> 2Fe2O3
The 2 means this in the following chemical formula: CO2
What is that there are two oxygen atoms in the carbon dioxide molecule?
This is what happens to chemical bonds during a chemical reaction.
What is they are broken and reformed?
A substance added to a chemical reaction that lowers the activation energy.
What is a catalyst?
In a chemical equation, the atoms or compounds on the left side of the arrow are called this.
What are reactants?
Balance the following equation:
Li + Br2 --> LiBr
What is
2Li + Br2 --> 2LiBr
In this chemical equation, the 2 in front of the H2O means this.
2H2+O2 → 2H2O
What is two water molecules being produced in this reaction?
This is a measure of the amount of one substance dissolved in another substance. When it is higher, chemical reactions will occur more quickly.
What is concentration?
A reaction where energy is absorbed from the surroundings.
What is an endothermic reaction?
These 3 things are essential in writing a chemical equation.
What are reactants, an arrow, and products?
Balance the following equation:
C6H6 + O2 --> CO2 + H2O
What is
2C6H6 + 15O2 --> 12CO2 + 6H2O
This reaction in sentence form:
4 Al + 3 O2 = 2 Al2O3
What is four aluminum atoms react with three oxygen molecules to produce two aluminum oxide molecules?
When solids are ________________, they are broken into smaller pieces, thus increasing their ______________, which would speed up a chemical reaction.
(Looking for 2 words to fill in these blanks).
What is disintegrated and surface area?