o low would you show that setting of a curd is a chemical change?
06 Explain why burning of wood and cutting it into small pieces are
considered as two different types of changes
0% Describe how crystals of copper sulphate are prepared
O Explain how painting of an iron gate prevents it from rusting?
09. Explain why rusting of iron objects is faster in coastal areas than
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Turning of milk into curd is a chemical change, because in this process a new substance is formed that is curd. The lactose sugar of milk gets converted to lactic acid to form curd.
When we burn a piece of wood, it gets converted into ashes and thus a new substance is formed.
However, when we cut a piece of wood. It's pieces remain wood even after cutting. Here no new substance has been formed.
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