Mixtures

Question 1

What is the Difference between a pure substance and a mixture

Answer 1

A mixture has different substances and you can separate it and a pure substance has just one substance and you can’t separate it

Question 2

Using melting point information , decide weather a substance is pure or is a mixture

Answer 2

A pure Substance will melt at the same temperature until it has changed state whereas the melting point of the mixture will keep on changing

Question 3

If the substance is more pure what happens to the melting point ?

Answer 3

It becomes more sharper

Question 4

Why does the temperature not change as a pure substance melts

Answer 4

Because the substance is pure and doesn’t have lots of different molecules to break down