Baka to Tesuto to Syokanju:Volume9 The Second Question

The Second Question

Please answer the following question.

Please write down the products formed when pentahydrate copper sulfate and barium chloride solution are mixed and heated. Assume that pentahydrate copper sulfate and barium chloride will completely react with each other.

Kirishima Shouko’s answer:

“Barium sulphate, copper chloride, water”

Teacher’s comment:

Correct. The chemical equations in this reaction is

CuSO4+BaCl2->BaSO4+CuCl2

But before this, with the addition of pentahydrate copper sulphate, there will be the reaction of

CuSO4•5H2O->CuSO4+5H2O

So water’s formed amongst the products too.

Yoshii Akihisa’s answer:

“Table salt.”

Teacher’s comment:

Why do you think this will be formed? Sometimes, sensei here really can’t catch up to Yoshii-kun’s thinking process at all.

Himeji Mizuki’s answer:

“Demi-glace.”[1]

Teacher’s comment:

………………………………………………………….Eh?