Compounds are Chemically Bonded Flashcards
1
Q
What is a compound?
A
A substance that is made of two or more different elements, which are chemically joined together
2
Q
What is carbon dioxide formed from?
A
A chemical reaction
3
Q
How is a molecule of carbon dioxide formed?
A
Two oxygen atoms,s react with one carbon atoms
4
Q
What is very difficult to do?
A
separate the two original elements out again
5
Q
What are the properties of a compound often like?
A
Totally different from the properties of the original elements
6
Q
What happens if a mixture of iron and sulphur is heated?
A
The iron and sulphur atoms react to form the compound iron sulphide