mp4p5+group+1

[] Justin Becky Sasha

Zinc-Oxide: Non-toxic, hazardous to breathe in the fumes.

Copper (II) Sulfate: Irritant, can recieve toxic exposure

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copper (II) sulfate :CuSO4

Zinc-oxide:ZnO

Observations: Gray brittle not shiny

__LAB FROM APRIL 12__ __1.__ //we had to first balance the scale to zero!//

=
//2. Then we had to put a piece of paper on the scale and zero it out again //



Research for april 26th :

Calcium Chloride CaCL2 1 can act as an irritant by desiccating moist skin. 2.When it dissolve it reless heat in your mouth.