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Topic 1c - Calculations - Coggle Diagram
Topic 1c - Calculations
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Conservation of mass
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Non-enclosed system
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Mass of a reactive metal will increase the substance is heated in air, as the metal will react with oxygen to form oxides
Mass of a reactive non-metal will decrease if its heated in the air as the products in the gas state can escape
Mass of a metal carbonate decreases if heated, CO2 produced escapes the container
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Concentration
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dm and cm
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To convert from cm^3 to dm^3, divide by 1000
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Masses from equations
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3) For the substance you know the mass of, calculate the moles of it (mass/ Mr)
4) Used the balancd equation to find the ratio of the other substance, using the coefficients of the molecules
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