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Question 4 1 pts There are atoms of phosphorus present in a 25.0 g sample of calcium phosphide. (note: the units are already
D Question 5 1 pts coefficients for the reaction below when it is balanced? Carbon monoxide reacts with nitrogen monoxide to
Question 6 2 pts What are the coefficients when the reaction below is balanced? barium bromide reacts with sodium phosphate t
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Q.4 Calcium phosphide = Cape molecular mass = (40X3) + (2x31) = 182 u Given mass of Ca₂ P2 in sample = 25 g moles of = GiFirst number of moles of Ca​​​​​3​P​​​2 is calculated. From moles number of molecules calculated. One calcium phosphide contain two P atoms.

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