Drag a substance into the water beaker. Which one forms a solution?
Substances
Water (Solvent)
A solute + solvent = solution
Does mass disappear when a solid dissolves? Click the button to find out.
Mix 15g of salt into 50g of water. What is the total mass?
Watch particles move. Hotter water → more kinetic energy → more solute dissolves.
Add solid solute. At low temperatures the solution saturates faster. Try heating it and adding more!
Is black ink pure? Drag the ink onto the paper, then run chromatography.
Step 1: Drag ink onto the paper baseline
Step 2: Run the chromatography
All 50 questions from the Chapter 2 worksheet. Click "Show Answer" to reveal the teacher's answer.