Find the AH° for the reaction of two moles of aqueous ammonium hydroxide and one mole of aqueous calcium chloride that produces two moles of aqueous ammonium
chloride and one mole of solid calcium hydroxide. (Hint: Be careful looking up the AH
for ammonium chloride and calcium hydroxide.)
2NH, OH(aq) + CaCl(aq) 2NH, Cl(aq) + Ca(OH)(s)
0.-1585.41 kJ
O-31.04 kJ
O-1518.2 kJ
-3103.61 kJ
-67.2 kJ
I NEED HELP FAST !!

Imagine that a new planet is discovered with two moons of equal mass: moon a and moon b. the mass of the new planet is greater than the combined mass of its moons. moon a is farther away from the new planet than moon b. what is the planet's gravitational pull on moon a compared to the planet's gravitational pull on moon b? the planet's gravity repels moon a with a greater force than it repels moon b, which is why moon a is farther away. the gravitational pull on moon b is greater than on moon a because moon b is closer to the new planet than moon a. the gravitational pull on moon b is greater than on moon a because moon b is farther away from the new planet than moon a. the gravitational pull on moon a is the same as the gravitational pull on moon b because distance does not affect the planet's gravity.