Step 16 of 18 · Solutions and mixtures · SC4-SOL-01
Solutions and dissolving
Solute + solvent = solution — and the solute never disappears.
Learn it
Describe solutions, explain dissolving and the factors that affect its rate
Idea 1 of 4
The three words
The solute is what dissolves (sugar). The solvent is what it dissolves in (water). Together they make a solution — clear, though not always colourless, and the solute never settles out.
Know it by heart
Say each one in your head, then tap to check.
Try it
Play — nothing here is marked
Ready
Ready
Is it a fair test?
Yes — only the temperature is different, so any difference in time is caused by it.
On the balance
200 g water + 10 g sugar = 210 g
Watch the reading as it dissolves.
A full-marks answer
15 g of salt is dissolved in 200 g of water. What is the mass of the solution? Explain.
2 marksBuilt one line at a time — say the next line before you reveal it
- Mass of solution = 15 g + 200 g = 215 g.(add solute and solvent)
Words to know
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Step 16 · last bit
Ready? Prove it.
A round of ten. Score 8 or more and this step is done — then on to separating mixtures.