Which of the following statements are true regarding ionic compounds with polyatomic ions? a
When an alkali earth metal is attracted to a phosphate, a cation to anion ratio would be 3:2

b
Cobalt's charge is the same in CoSO4 and CoSO3

c
potassium cyanide and silver iodate are equal in cation to anion ratio.

d
An acetate can never be in an ionic compound with a cation to anion ratio of 1:3

e
Ni(SCN)2 and Au(SCN)3 have a same charge for the transition metal.

a rain shadow is a dry region of land on the side that is protected against the prevailing winds of a mountain range. the prevailing winds are the winds that occur most of the time in a particular place of the earth

prevailing winds carry air toward the mountain range. as the air rises up over a mountain range, the air cools, water vapor condenses, and clouds form. on this side of the mountains, called the windward side, precipitation falls in the form of  rain  or snow. this dry air produces a  rain shadow.

the enthalpy of formation of water is given as -285.8kj/mol, which states that the enthalpy of formation is negative.

negative enthalpy of formation indicates that the heat is released during the reaction process. the heat is released from reaction to the surroundings the enthalpy is expressed with a negative sign with the energy given out in the reaction process.

the formation of water takes place by giving out heat which is -285.8 kj/mol.