Questions


November 2022 1 3 Report
Danica was assigned by her teacher to match compound with its constituent elements. Which do you think of her matched pair are correct?
I. Iron pyrophosphate
II. calcium chloride
III. Sodium bicarbonate
IV. Zinc Sulfate
a. I and II only
b.I and II only
c. II and III only
d. I and IV only​​

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