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Chemistry vocabulary

definition

TermDefinition
Acid a chemical substance, usually a liquid, which contains hydrogen and can react with other substances to form salts. Some acids burn or dissolve other substances that they come into contact with.
Hydrogen a gas that is the lightest of all the elements. It combines with oxygen to form water.
Base a chemical substance, for example an alkali , that can combine with an acid to form a salt
Alkali a chemical substance that reacts with acids to form a salt and gives a solution with a pH of more than seven when it is dissolved in water
Solution a liquid in which a solid substance has been dissolved.
Substance a solid, powder, liquid, or gas with particular properties.
Properties the ways in which a substance or object behaves in particular conditions.
Matter physical substance in general that everything in the world consists of; not mind or spirit
PH Pondus Hydrogenii, a measurement of the level of acid or alkali in a solution or substance. In the pH range of 0 to 14 a reading of below 7 shows an acid and of above 7 shows an alkali
Indicator a measurement or value that gives you an idea of what something is like.
ion an atom or a molecule with a positive or negative electric charge caused by its losing or gaining one or more electrons
electron a very small piece of matter (= a substance) with a negative electric charge, found in all atoms
sodium chloride common salt (a chemical made up of sodium and chlorine )
particles any of the basic units of matter and energy, such as an electron or atom , a proton, molecule or photon
Created by: sandyqu
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