Flashcards
KS3 Chemistry
Cards in this deck (22)
- 1KS3 Chemistry year 7States of matter + solutions
acids and alkalis
simple chemical reactions - 2what are the three states of matter?solids, liquids and gasses
- 3what's the name of converting a solid to a liquid?melting
- 4what happens when you overheat a liquid and why?the particles spread out and it turns into a gas
- 5what's the name of turning a gas to a liquid?condensation
- 6what's the difference between solute and solvent?solvent is the liquid in a solution and solute is the solid
- 7what's evaporation?evaporation is overheating a solution so the solvent turns into gas and separates from the solute
- 8how is filtration done?take a solution then pour it through a funnel. the leftover solid is called residue and the liquid that has passed through is called filtrate.
- 9what does insoluble mean?insoluble means non-dissolveable
- 10what does saturated mean?saturated means no more solids can be dissolved in this liquid.
- 11what color is blue litmus paper in an alkali?stays blue
- 12what is neutralization?its when you add an acid to an alkali so the substance is balanced
- 13how do antacid pills work?antacid pills are made of alkalis and neutralize the acidity in your stomach. anti acid.
- 14what is a base?a base is an insoluble alkali
- 15what is the difference between a chemical and physical reaction?a physical reaction is reversible
- 16what are reactants?the things we add together in word equations
- 17acid + metal oxide=salt + water
- 18what is the test for hydrogen?add a lit splint into the tube, if there is hydrogen it will make a pop sound.
- 19what is the test for carbon dioxide?when you add lime water, it will turn milky.
- 20what do you need to start a fire?oxygen, heat and fuel
- 21what is combustion?combustion is a natural fire
- 22what is an oxide?an oxide is when oxygen and metal burn together
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- states of matter solutions acids & alkalis chemical reactions
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- Laila Al-Refai
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