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Describe how crude oil is separated into fractions
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Why is Lithium a +1 ion and Chlorine a -1 ion?
What is an ionic bond?
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An industry is producing copper sulphate (CuSO4) from copper carbonate (CuCO3) and sulphuric acid (H2SO4). The company calculated that from 800 g of CuCO3 they will produce 1kg of CuSO4. However they only produced 900g. What is the percentage yield ?
Describe how elements are arranged in the periodic table
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