What is a pure substance?

How can you use the melting and boiling points of a substance to see how pure it is?

What is a formulation?

Give an example of a formulation and its components?

What is the test for chlorine?

What is the test for oxygen?

What is the test for carbon dioxide?

What is the test for hydrogen?

How can you identify ions using a line spectrum?

How could you identify ions in a mixture using flame emission spectroscopy?

What are anions and cations?

How can you test for carbonates?

How can you test for sulfates?

How can you test for hallides?

How do you identify a metal ion using flame tests?

What are the flame tests for each positive metal ion (cations)?

Which metals form coloured precipitates with NaOH?

What are the two types of phases in paper chromatography?

Explain paper chromatography?

In paper chromatography what two things does the amount of time the molecules are in each stage depend on?

What is the Rf value?

How can you use an Rf value to see if a substance is pure?

How is the Rf value affected by the solvent?