CC1 & CC2

Created by

fird._.aws

Cards (47)

What is an atom? 
The smallest neutral part of an element that can take part in chemical reactions.
What are attractive forces? 
The weak forces of attraction between molecules.
What is the boiling point? 
The temperature at which a liquid boils.
What do chemical properties describe? 
How a substance reacts with other substances.
What is the melting point? 
The temperature at which a substance changes from solid to liquid when heated.
What is a molecule? 
A particle consisting of two or more atoms joined together by covalent bonding.
What is a particle? 
A tiny piece of matter that everything is made out of.
What is the particle model? 
A theory to explain the different properties and observations of solids, liquids, and gases.
What is a physical change? 
A change in which no new substances are formed, like changes of state.
What are the states of matter? 
The three different forms that a substance can have: solid, liquid, or gas.
What is a compound? 
A substance that can be split into simpler substances, containing atoms of two or more elements joined together.
What is an element? 
A substance made up of only atoms with the same number of protons in the nucleus.
What does impure mean? 
A substance that is not pure.
What is a mixture? 
Two or more substances jumbled together but not joined to each other.
What is a physical property? 
A description of how a material behaves and responds to forces and energy.
What does pure mean? 
A single substance, with a fixed composition, that does not have anything else mixed with it.
What is crystallisation? 
Separating the solute from a solution by evaporating the solvent.
What is a filtrate? 
The solution passing through a filter.
What is filtration? 
Using a filter to separate insoluble substances from a liquid.
What is a hazard? 
Something that could cause harm.
What does insoluble mean? 
Describes a substance that cannot be dissolved in a certain liquid.
What is residue? 
The material remaining in the filter after the mixture has passed through it.
What is risk? 
The chance of a hazard causing harm.
What is a risk assessment? 
Identification of the hazards of doing an experiment.
What is a saturated solution? 
A solution that contains the maximum amount of solute that can dissolve in that amount of solvent at that temperature.
What is a solute? 
The substance that dissolves in a liquid to make a solution.
What is a solution? 
A mixture formed when a substance has dissolved in a liquid.
What is a solvent? 
The liquid in which a solute dissolves to make a solution.
What is chromatography? 
A technique for separating the components of a mixture.
What is paper chromatography? 
Chromatography carried out by spotting drops of the samples onto paper and allowing a solvent to move up the paper.
What is the stationary phase in chromatography? 
The surface through which the solvent and dissolved substances move in chromatography.
What is the mobile phase in paper chromatography? 
The solvent that moves along the paper carrying the dissolved samples with it.
What is a chromatogram? 
The piece of paper showing the results of carrying out chromatography on substances.
What is the Rf value? 
The ratio of the distance travelled by the solute to the distance travelled by the solvent under the same conditions.
What does condense mean? 
When a gas turns into a liquid.
What is distillation? 
The process of separating a liquid from a mixture by evaporating the liquid and then condensing it.
What is fractional distillation? 
A method of separating a mixture of liquids with different boiling points into individual components.
What is a still? 
The apparatus used to carry out distillation or fractional distillation.
What is an aquifer? 
An underground layer of rock containing groundwater, which can be extracted using a well or pump.
What is chemical analysis? 
Using chemical reactions or sensitive machines to identify and measure substances in a sample.