Chapter 6 - Josepth Holt
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Product
A substance that is created in a chemical reaction.
Reactant
A molecule that takes part in a chemical reaction.
Chemical energy
When energy is released and reacts to make new compounds
Exothermic reaction
When heat is release to its surroundings. An example is a heater spreading heat to a room.
Endothermic reaction
A chemical reaction that needs heat. An example is photosynthesis because it needs heat to produce oxygen.
Synthesis reaction
Where two or more substances are combined to form a new compound.
Decomposition reaction
When a single compound breaks down to form two simpler substances.
Electrolysis
When an electric current is used to make a chemical reaction.
Combustion reaction
The oxidation of an organic compound. Heat is released during the process.
Single-displacement reaction
When one element takes the place of another element in a compound.
Double-displacement reaction
When a gas, solid, or molecular compound is made from an exchange of atoms between two compounds.
Oxidation-reduction reaction
Where one species loses electrons while another species gains electrons.
Radical
Where an organic group has one or more electrons ready for bonding.
Reduced
When substances gain electrons.
Oxidized
When a substance gives up electrons.
Chemical equation
When chemicals show their symbols to show the relationship between reactants and products.
Mole ratio
The number of moles that is required to produce a certain amount of product during a chemical reaction.
Catalyst
When a substance changes a chemical reaction’s rate without changing it.
Enzyme
When a protein speeds up metabolic reactions in plants and animals without killing it.
Substrate
When an element lies beneath and supports another element. It’s also Catalyzed by Enzymes.
Chemical equilibrium
When a reaction is balanced and no changes are happening.
Coefficient
Numbers that are used in chemical equations.
Law of conservation of mass
When the total mass of a reactant is the same as the total mass of a product.
Law of definite proportions
When a compound contains the same amount of elements, regardless of how much of it was formed.