14 terms

Equations vocabulary

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Combustion
An exothermic reaction in which a substance reacts with oxygen gas to produce oxides.
Synthesis
A chemical reaction in which more complex products are formed.
Decomposition
A chemical reaction in which one substance breaks down to form simpler ones.
Displacement (single)
A chemical reaction in which one substance with a higher activity takes the place of another of like charge in a compound.
Double displacement
A chemical reaction in which two substances of the same charge switch places in their respective compounds producing two new substances, one which is often insoluble in the other.
Neutralization
A special type of double displacement in which an acid reacts with a base to produce water and an ionic salt.
Exothermic
A change which produces substances which have stronger bonds than the reactants as well as releases energy to its surroundings.
Endothermic
A process or reaction in which the system absorbs energy from the surroundings in the form of heat.
Reactants
The starting materials in a chemical reaction; ie what undergoes the change.
Products
The substances formed in a chemical change.
Hydrocarbon
Any compound that contains hydrogen and carbon, often a reactant of combustion.
Equation
A representation of what occurs in a chemical change.
Coefficient
A number placed in front of a formula in a chemical equation used to balance the equation.
Conservation of Mass
The law which states that the total mass of the products must be equal to the mass of all of the reactants added together.
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