Question

URGENT PLS!!!!
1 SI 2!

Answer 1

Răspuns:

Explicație:

1.     M CuSO4= 64+32+4*16=160 g/mol

In 160 g sulfat de cupru avem.......64 g Oxigen

in X g sulfat............32 g Oxigen

X=160*32/64

X=80 grame sulfat de cupru

2. In 18 grame /mol apa........2 grame de H

    In X grame de apa...........10 grame de H

X=90 de grame de apa - raspuns a)