Chemical Change Flashcards
1
Q
What happens during chemical change?
A
Chemical bonds in the matter are broken and new bonds are formed
2
Q
What happens to the atoms during chemical change?
A
The total number of atoms always stays the same, but number and type of molecules may change
3
Q
Can a chemical change be easily reversed?
A
No, a chemical change cannot be usually reversed
4
Q
What difference do new substances have to original substances?
A
Different chemical properties
5
Q
What happens to the substances during a chemical change?
A
Some or all of the substances present at the start are not at the end
6
Q
What are some examples of chemical change?
A
Corrosion, combustion, thermal decomposition, rotting, souring, burning, cooking, rusting, exploding and mixing bicarbonate soda with vinegar
