Chemistry Definition
Quiz yourself by thinking what should be in
each of the black spaces below before clicking
on it to display the answer.
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| Acid | pH Level: Under 7. Neutalises alkalis.
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| Alloy | A metal made by mixing 2+ metals/non-metals.
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| Atomic Number | The number of protons in an element's nucleus.
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| Base | pH Level: Over 7. Turn litmus blue and react with acids to form salt.
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| Chemical Reaction | A change in the molecular or ionic structure of a substance.
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| Compound | 2+ elements chemically combined.
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| Covalent Bond | Chemical bonding where atoms share electron pairs.
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| Distillation | Heating a liquid to create a vapour, which is collected when cooled separate from original liquid. Separates soluble solid and its solvent.
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| Electrolysis | Decomposition produced by passing an electric current through a liquid or solution containing ions.
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| Element | Substance made of one type of atom.
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| Hard Water | Contains minerals (e.g: calcium/magnesium ions) that don't allow lather.
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| Indicator | Chemicals that change colour according to pH level.
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| Ionic Bond | A chemical bond in which one atom loses an electron to form a positive ion and the other atom gains an electron to form a negative ion.
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| Isotope | An atom of an element with a different amount of neutrons.
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| MIxture | 2+ substances mixed together but not chemically combined.
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| Molecule | Groups of 2 or more atoms joined together.
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| Neutralization | When an acid and base react to form a salt.
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| pH Scale | Measures the acidity and basicity of a substance.
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| Solution | The solute and solvent together.
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Created by:
Grainne
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