Compounds S1 Flashcards
What is a Element?
An element is made from atoms of the same type.
What is a Compound?
A compound is two or more elements chemically bonded together.
How is a compound formed?
When chemicals join together.
What is a mixture?
A mixture consists of two or more different substances, not chemically joined together.
What are 3 examples of mixtures?
Air, Sea water, Salt and water.
What do compounds ending in IDE contain?
Two elements.
What do compounds ending in ATE or ITE contain?
Oxygen in addition to other elements.
What elements are present in Magnesium Oxide?
Magnesium and Oxygen.
What elements are present in Iron Carbonate?
Iron, Carbon and Oxygen.
What are the starting substances in a word equation called?
Reactants
What are the new substances we end up with called in a word equation?
Products
What do we use to show what it changes in to in a word equation?
An arrow (not an equals sign)
What does solute mean?
It’s a substance that dissolves in a liquid.
What does solvent mean?
It’s the liquid that a solute dissolves in.
What is a solution?
A Solution is formed by dissolving a substance in a liquid.
What does soluble mean?
A soluble substance will dissolve.
What does insoluble mean?
A substance that does not dissolve in liquid is insoluble.
What would sugar be?
A Solute.
What would water be?
A solvent.
What is formed by dissolving a substance in a liquid?
A solution.
If the substance dissolves when I put it in the solvent what would it be?
Soluble
If the substance doesn’t dissolve when I put it in the solvent, what would it be?
Insoluble.
What are two separating techniques ?
Filtration and Evaporation (Distillation)
What is Filtration used to separate?
Filtration is used to separate an insoluble solid from a solution.