How many grams zinc phosphate (Zn3(PO4)2, M. M.=386.11 g/mol) will be produced if 835.0 g of zinc (Zn, M. M.=65.38 g/mol) reacts completely in the following equation: 3 Zn + 2 H3(PO4) → 3 H2 + Zn3(PO4)2

9112 g Zn3(PO4)2
1644 g Zn3(PO4)2
4931 g Zn3(PO4)2
4556 g Zn3(PO4)2

The wave shown on the electromagnetic spectrum disturb the medium it passes through a)different frequency. b)the same frequency .

Why does the sun appear to be the brightest star in the sky? a- its apparent brightness is much greater than other stars. b- it burns more gas, making it brighter than any other star. c- it is the largest star in the galaxy, so it is the brightest star. d- its relative distance to earth is closer than the other stars.

Why is soap used to remove grease? a. its nonpolar end dissolves the grease. b. it makes the water bond with the grease. c. it chemically bonds with the grease. d. its polar end dissolves the grease.correct answer for apex - a, its nonpolar end dissolves the grease.