chemistry

what are ions
An ion is a charged particle formed when an atom, or a group of atoms, loses or gains electrons
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what is a compound
A compound is a substance that contains two or more elements that are chemically combined
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what does sodium + chlorine make
sodium chloride
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what is a mixture
a mixture consists of two or more different substances, not chemically joined together
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name three examples of a compound
Sodium chloride, Water,Carbon dioxide
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what is the periodic table split into
non metals and metals
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name another way on which compounds can be formed
chemical reactions, one or more new substances are formed. Most chemical reactions involve energy changes.
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what is an atom
atoms are tiny particles that make up everything
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what is filtration
Filtration is used to separate an insoluble solid from a liquid. It is useful for separating sand from a mixture of sand and water, or excess reactant from a reaction mixture.
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who created the first periodic table
Dmitri Mendeleev
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explain distillation
Simple distillation works because the dissolved solute has a much higher boiling point than the solvent. When the solution is heated, solvent vapour leaves the solution. It moves away and is cooled and condensed. The remaining solution becomes more c
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explain how fractional distillation
Water and ethanol solution is heated,The ethanol evaporates first, cools, The water left evaporates, cools, then condenses
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name three properties of the giant covalent molecules
They have high boiling points, high melting points and they cannot conduct electricity.
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what is crude oil
Mixture of hydrocarbons, mainly alkanes, formed over millions of years from the remains of ancient dead marine organisms.
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whats the test for carbon dioxide
cloudy water (lime juice)
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how is the periodic table arranged
elements are arranged in rows, called periods, in order of increasing atomic number
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whats the test for oxygen
re light glowing split
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what is fractional distillation
Fractional distillation is used to separate different liquids from a mixture of liquids. It is useful for separating ethanol from a mixture of ethanol and water, and for separating different fractions from crude oil.
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in the periodic table what is the period
A horizontal row in the periodic table.
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true or false, polymers have small molecules
False
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whats for the test for hydrogen
squeaky pop
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whats for the test for hydrogen
squeaky pop
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name all the results of fractional distillation on a large scale
bitumen,heavy fuel oil,diesel, kerosene, petrol, petroleum gases
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Other cards in this set

Card 2

Front

what is a compound

Back

A compound is a substance that contains two or more elements that are chemically combined

Card 3

Front

what does sodium + chlorine make

Back

Preview of the front of card 3

Card 4

Front

what is a mixture

Back

Preview of the front of card 4

Card 5

Front

name three examples of a compound

Back

Preview of the front of card 5
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