PLEASE HELP ME THIS IS DUE RIGHT NOW 50 POINTS Consider the reaction
Al2 (SO4)
3 + CaCl2 → AlCl3 + CaSO4
When balanced using the smallest possible
integer coefficients, what will be the sum of
the coefficients?

Which part of earth’s surface receives the most direct rays from the sun? a) equator b) ocean c) poles d) mountains

Acrystal that absorvd water from air is (blank)a. aqueousb. homogenousc. hygroscopicd. efflorescent

Given the following at 25c calculate delta hf for hcn (g) at 25c. 2nh3 (g) +3o2 (g) + 2ch4 (g) > 2hcn (g) + 6h2o (g) delta h rxn= -870.8 kj. delta hf=-80.3 kj/mol for nh3 (g), -74.6 kj/mol for ch4, and -241.8 kj/mol for h2o (g)