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

Water's surface tension and heat storage capacity are accounted for by its a) orbitals b) weight c) hydrogen bonds d) mass e) size

Consider hydrogen in an excited state n = 5n=5 that emits photons to reach the ground state. there are various possible transitions other than straight to the ground state that can occur; for example, it can drop to the n = 3n=3 state followed by the n = 3n=3 to the ground state transition. which of the possible transitions will result in the emission of a photon in the visible region?

Which of the following notations would be the appropriate and final way to display the formula for magnesium chloride a. mgcl2 b. mg+2cl–1 c. mgcl2 d. mgcl