C. Pre-test Draw a happy face :)
if the statement is correct and cross (X) if it is incorrect.
1. A concentrated solution contains a specified amount of solule.
2. Adding more water to a solution dilutes it.
3. Ingredients in medicines and foods are often expressed as percentages.
4. When adding liquid solute and solvent together, volume is always conserved or constant
5. Seventy percent Isopropyl alcohol is more expensive than 40% isopropyl alcohol​