Label each research topic below as an example of pure chemistry or applied chemistry. 1) developing a fire resistant fabric 2) reducing the active ingredient in a medication to minimize side effects 3) analyzing the compounds found in a soil sample from mars 4) measuring how much water expands upon freezing

These can be classified as

1) developing a fire resistant fabric  : it will involve the application of chemistry as this is not direct chemistry so this will be applied chemistry

2) reducing the active ingredient in a medication to minimize side effects :

This will involve the pure chemistry

3) analyzing the compounds found in a soil sample from mars  

This will involve again the analysis part hence it is pure chemistry

4) measuring how much water expands upon freezing

This is application of chemistry , hence applied chemistry

Pure chemistry:

Analyzing the compounds found in a soil sample from MarsMeasuring how much water expands upon freezing

Applied chemistry:

Developing a fire-resistant fabricReducing the active ingredient in a medication to minimize side effects

a. Determine the ratioHence 2:1 --> 6:3 So 3