compounds Flashcards
1
Q
what is a molecule?
A
two or more atoms joined together
2
Q
what are the ‘joins’ known as?
A
chemical bonds
3
Q
how are compounds formed?
A
when atoms of different elements join together> for example: Carbon Dioxide
4
Q
what is an element made up of?
A
atoms
5
Q
what is an element made up of?
A
molecules
6
Q
what is a compound made up of?
A
molecules
7
Q
what is a mixture made up of?
A
different elements
8
Q
what is a chemical reaction?
A
chemicals combine together or split apart to make new substances
9
Q
what happens when elements combine?
A
a new compound is synthesised (made)
10
Q
what do new compounds produce?
A
by chemical reactions have different properties from a original elements
