2 a) Describe in detail the preparation of a pure, dry sample of copper(II) sulfate crystals, CuSO,5H,0, starting from
copper(ll) oxide.

b) Write full equations for (i) the reaction producing
copper(II) sulfate solution, (ii) the crystallisation reaction.

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the food using pesticides in the future will harm you by giving you diseases like cancer or something since they have things that we should not eat in it like chemicals or pesticides. that is why organic food is more expensive because they take the time to make it right and healthy for you to eat.

explanation:

if you mean hydrogen and oxygen then water is the product

a pan containing water is placed in a positio n where it is exposed to a 10 mile per hour wind. the pan contains a uniform depth of 1.27 cm of water, is quite wide, and has a length of 2.44 m in the wind direction. the water in the pan is at a constant temperature of 15.5 °c.