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Vocabulary
Types of Reactions
Rates of Reactions
Balancing Equations
More Vocab
100
The minimum amount of energy needed to start a reaction
What is activation energy
100
A type of reaction that releases energy in the form of heat
What is an exothermic reaction?
100
To make a reaction happen faster, do this to the temperature
What is increase the temperature?
100
There must be the same number of these on each side of a balanced equation
What are atoms?
100
A substance that cannot be broken down into any other substances by chemical or physical means
What is an element?
200
A solid that forms from a solution during a chemical reaction
What is a precipitate?
200
A kind of chemical reaction which absorbs energy.
What is an endothermic reaction?
200
This changes the rate of reaction by lowering the activation energy
What is a catalyst?
200
The small numbers in the formula, telling how many atoms the are of each element cannot be changed.
What are subscripts?
200
A substance formed as a result of a chemical equation
What is a product?
300
A substance that enters into a chemical reaction
What is a reactant?
300
2 or more substances combine to make a more complex compound (A + X --> AX)
What is a synthesis reaction?
300
Increasing temperature, surface area, or this, will increase the rate of the reaction.
What is concentration?
300
You can put these in front of formulas to change the numbers of atoms to balance equations
What are coefficients?
300
A combination of symbols that represent the elements in a compound
What is the formula?
400
A short, easy way to show chemical reactions, using symbols instead of words.
What is a chemical equation?
400
A reaction which breaks down compounds into simpler products (AX --> A + X)
What is decomposition?
400
This material decreases the rate of a reaction.
What is an inhibitor?
400
The subscript applies to each element within these
What are parentheses?
400
A change in these show a chemical reaction has taken place
What are properties?
500
A rapid reaction between oxygen and fuel, which results in fire.
What is combustion?
500
A reaction in which 1 element replaces another, or 2 elements in separate compounds trade places (A + BX --> AX + B)
What is a replacement reaction?
500
A type of catalyst in the body, which increase reaction rates
What are enzymes?
500
This law explains why there needs to be equal numbers of atoms on both sides of the equation.
What is law of the conservation of mass?
500
Reactants need this to undergo a chemical change.
What is energy?