Balanced equation: A chemical equation that is written so the numbers of molecules do not change from one side to the other of the equation.
Concentration: How many molecules of a substance there are in a fixed volume, how dilute it is.
Crucible: A piece of apparatus - a ceramic "pot" that can be used for heating substances to high temperatures. Includes a lid.
Percentage Yield: The percentage of a substance you collect as a percentage of how much was created in a reaction.
State Symbol: Indicates the state of a chemical at room temperature in a reaction (unless otherwise specified), e.g. (g) for gas, (aq) for aqueous. Found in a chemical equation written in the bottom right corner of a molecule.
Yield: The amount of a substance you retrieve from an experiment/chemical reaction
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Section 3 a) Specification
3.1 explain the terms homologous series, hydrocarbon, saturated, unsaturated, general formula and isomerism. A homologous series is a grou...
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The group 7 elements, also known as halogens, are F, fluorine, Cl, chlorine, Br, bromine, I, iodine, and At, astatine. They all have antimic... -
Metals can be placed in an order of most to least reactive, called the reactivity series. This can be remembered using an acronym: Plea... -
Particles of a substance can be present in different physical states, the states of matter. They are solid, liquid and gas, and increasing ...
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