Jesses Chemistry Test

Question 1

Difference between an atom an element and a compound

Answer 1

1. An atom is the smallest part of an element that can exist
2. A compound is two or more elements chemically combined

Question 2

How does fractional distillation work

Answer 2

1.A mixture Is heated
2. The liquid with a smaller boiling point boils
3. The liquid with a smaller boiling point turns to vapour
4. The vapour condenses inside the tube
5. The vapour runs down into a flask