Chemistry, 18.01.2021 15:30 brapmaster764
3. What range of numbers would you expect on the pH scale for an alkali? (1 mark)
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Asample of hydrated tin (ii) chloride (sncl2) has a mass of 4.90 g. when it is dehydrated, it has a mass of 4.10 g. which is the correct chemical formula for the hydrate? sncl2•2h2o sncl2•4h2o sncl2•6h2o
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State one important difference between a physical change and a chemical change?
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3. What range of numbers would you expect on the pH scale for an alkali? (1 mark)...
Computers and Technology, 21.11.2019 04:31
Computers and Technology, 21.11.2019 04:31