October 2018 1 29 Report

1) oblicz i zaznacz zawartość procentową wapnia w soli o wzorze CaCO3

a) 20 %

b) 30 %

c) 40 %

d) 68 %

2) Oblicz i zaznacz zawartoÊç procentowà (procent masowy) w´gla w soli o wzorze CaCO3.

A. 15,4%

B. 20,5%

C. 12%

D. 48%


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