chemical change Flashcards
physical properties
It affects a substance by separating the mixture. e.g When ice cubes melt it turns into liquid
chemical properties
properties that describe how different substance can be combined to form new or different chemicals
flammability
It is an indicator when something is about to catch on fire
reactivity
It is a measure of how a substance reacts
toxicity
A poisonous substance mixed with chemicals in your body that is harmful to your health
melting
When turning a solid into a liquid
evaporation
When liquid evaporates and turns into gas
freezing/solidification
Turning a liquid back into a solid at a cold temperature also known as solidification
condensation
when turning a gas back into a liquid
sublimation
The changing of a solid into a gas without turning into a liquid
deposition/desublimation
It is the reverse prosses of sublimation, changing a gas back into a solid without turning into a liquid
also known as desublimation
solid
It is a state of matter that has a fixed shape
liquid
It is a state of matter that has no fixed shape
gas
it is a state of matter that can move quickly and has a large amount of space
precipitate
A solid product of a chemical reaction that does not dissolve in water
products
It is a new chemical substance made from a chemical reaction
reactants
A chemical substance made up a chemical reaction
chemical reaction
It is a chemical change in two or more substance are produced
reaction rate
It is the speed of the chemical reaction that is taking place
catalyst
It is a chemical that helps or speeds up the chemical reaction
Rusting
the corrosion of iron
corrosion
A chemical reaction the wears away iron and other metals. oxygen and water both combine to rust metals
surface protection
A surface coat that protects the substance from corrosion
galvanising
It is covering a substance that will react to corrosion first
