C1 States Of Matter

Question 1

Solids

Answer 1

When particles have strong forces of matter between them which hold them in fixed positions. The particles don’t move so all solids keep a definite shape and volume. The particles vibrate in fixed positions - the hotter the solid becomes the more it will vibrate

Question 2

Liquids

Answer 2

There is some force of attraction between the particles. They don’t keep a definite shape and will flow to fill the space they are confined in. The particles are constantly moving with random motion.

Question 3

Gases

Answer 3

There is no forced of attraction between the particles they’re free to move around. They do not keep a definite shape or volume. The particles move constantly with random motion. The hotter the gas gets the faster they move

Question 4

Physical change

Answer 4

When a substance changes from one state to another it is a physical change. No new substances are made the original chemicals just change state

Question 5

Chemical change

Answer 5

During a chemical reaction, bonds between atoms break and the atoms change places - the atoms from the substances u start of with ( the reactants) rearrange themselves to form different chemicals. These new chemicals are called products. Chemical changes are hard to reverse