Atoms,elements,compounds and mixtures Flashcards
1
Q
What is the smallest part of an element?
A
Atoms
2
Q
What is an element
A
Made up of only one type of atom
3
Q
How can compounds be separated into their component elements
A
By chemical reactions or electrolysis
4
Q
Reactants
A
On left side of the equation and are the substance that reacts
5
Q
Products
A
Right side of equation and are the new substance formed
6
Q
What’s a mixture
A
Two or more elements or compounds that are not chemically combined
7
Q
3 methods of separating mixtures
A
Filtration-soluble solids from insoluble solids
Crystallisation- soluble solid from a solution
Simple distillation- solvent from solution
8
Q
Describe chromatography
A
Separate the different soluble coloured components of a mixture
