(c) When hydrated copper(ll) sulfate crystals are heated, anhydrous copper(II) sulfate forms. A mass of 25.0 g of hydrated copper(II) sulfate crystals is heated in a crucible until all the water of
crystallisation is removed.
NOCH
Un
A mass of 16.0 g of anhydrous copper(ll) sulfate forms.
Show by calculation that the formula of hydrated copper(ll) sulfate is CuSO4.5H2O
[M, of CuSO4 = 159.5 Mr of H20 = 18]

Iknow the answer to 13 is b and 14 is d. i just need to know why the correct answers are correct

Consider the nuclear equation below. 239 > x + 4 he 94 2 what is x? 1.235 cm 96 2.243 u 92 3.235 u 92 4.243 cm 96

Amines are good nucleophiles, even though they are neutral molecules. how would the rate of an sn2 reaction between an amine and an alkyl halide be affected if the polarity of the solvent is increased? amines are good nucleophiles, even though they are neutral molecules. how would the rate of an reaction between an amine and an alkyl halide be affected if the polarity of the solvent is increased? because both reactants in the rate-limiting step are neutral, the reaction will be faster if the polarity of the solvent is increased. because both reactants in the rate-limiting step are neutral, the reaction will be slower if the polarity of the solvent is increased. because both reactants in the rate-limiting step are neutral, the reaction will occur at the same rate if the polarity of the solvent is increased. request answer