Zadanie 2b
The student recorded the following masses. Calculate the percentage by mass of iron and of calcium carbonate in the mixture.
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The student recorded the following masses. Calculate the percentage by mass of iron and of calcium carbonate in the mixture.
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(i) State the independent variable and the dependent variable of the investigation. (ii) Apart from the mass of leaves and the volume of water, suggest two other conditions that should be kept constant for the comparison between boiling times to be valid.…
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