Chemistry End of Topic Test Flashcards
1
Q
Atoms
A
The tiny particles that make up matter, they are the building blocks of matter.
2
Q
Molecule
A
A group of two or more atoms chemically bonded together.
3
Q
Compound
A
A substance made up of more than one type of atom chemically combined.
4
Q
Physical Change
A
A change to any matter which does not involve the production of a new substance. e.g. When water is boiled, it changes from liquid to gas.
5
Q
Chemical Change
A
A change to any matter which results in the formation of a Chemical new substance (or substances). When a chemical change occurs, we say that a chemical reaction has taken place.
