Dilution and Filtration

Intro: Last week in science we mixed copper nitrate with sodium hydroxide to make a bright blue precipitate

1.Which test tube had the most concentrated sample of Copper nitrate: Diluting-test tube 1

2.When we added water what were we doing to the concentration: Chemicals weaker-diluted with water.

3.Test tube 1 

4.Make sure you have a photo to post!