Elements, Compounds, Mixtures

Question 1

element

Answer 1

a substance which cannot be further divided into simpler substances by chemical methods. it is made up of 1 type of atom.

Question 2

mixture

Answer 2

a system of two more substances that can be seperated by physical means

Question 3

compounds

Answer 3

a substance formed by the combination of two or more elements in fixed proportions. elements that are chemically bonded together.

Question 4

solvent

Answer 4

a liquid which dissolves a solute to form a solution

Question 5

solute

Answer 5

soluble solid which dissolves in a solvent to form a solution

Question 6

solution

Answer 6

this is formed when a substance (solute) dissolves into another substance (solvent)

a solution consists of a solute dissolved in a suitable solvent

Question 7

concentration

Answer 7

a measure of the number of particles of the solute in the solvent

measured in moles per dm^3 // mol/dm^3

Question 8

molecule

Answer 8

a group of two or more atoms covalently bonded together