C1.1.3 The fundamental ideas in chemistry

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C1.1.3 The fundamental ideas in chemistry - Chemical reactions

Give an honest assessment of your confidence with the following statements. All statements are taken from the C1 specification.

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When elements react, their atoms join with other atoms to form compounds. *

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Compounds involve taking or sharing electrons to form ions or molecules. *

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Compounds formed from metals and non-metals consist of ions. *

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Compounds formed from non-metals consist of molecules. *

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In molecules the atoms are held together by covalent bonds. *

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Chemical reactions can be represented by word equations or by symbol equations. *

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No atoms are lost or made during a chemical reaction so the mass of the products equals the mass of the reactants. *

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You need to be able to confidently balance symbol equations. *

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How confident are you with this topic overall *

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