CHEMSHEETS SOLUTIONS www chemsheets co uk KS 3
- Slides: 11
CHEMSHEETS SOLUTIONS © www. chemsheets. co. uk KS 3 022 04 -Jan-14
Some substances dissolve in water e. g. salt white solid colourless solution © www. chemsheets. co. uk KS 3 022 04 -Jan-14
Some substances dissolve in water e. g. copper sulfate coloured solid coloured solution © www. chemsheets. co. uk KS 3 022 04 -Jan-14
Some substances dissolve in water e. g. nickel sulfate coloured solid coloured solution © www. chemsheets. co. uk KS 3 022 04 -Jan-14
SOLUBLE Dissolves (e. g. salt in water) INSOLUBLE Does not dissolve (e. g. sand in water) © www. chemsheets. co. uk KS 3 022 04 -Jan-14
Is each substance SOLUBLE or INSOLUBLE in water? sugar flour gloss paint glass salt sand
When a substance dissolves: • the solid “disappears” • the solution is see-through • the solution is coloured (if a coloured solid) or colourless (if a white solid) When a substance does NOT dissolve: • the solid is still visible in a colourless liquid or • the liquid is cloudy
SOLUTE Substance dissolving SOLVENT Liquid the solute dissolves in SOLUTION Solute dissolved in solvent © www. chemsheets. co. uk KS 3 022 04 -Jan-14
There are many solvents: e. g. water Saline solution (salt dissolved in water) © www. chemsheets. co. uk KS 3 022 04 -Jan-14
There are many solvents: e. g. ethanol Iodine tincture (iodine dissolved in ethanol) used as an antiseptic © www. chemsheets. co. uk KS 3 022 04 -Jan-14
There are many solvents: e. g. perchloroethylene Used to dissolve dirt in dry cleaning © www. chemsheets. co. uk KS 3 022 04 -Jan-14
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