Lithium nitride reacts with water to produce ammonia and lithium hydroxide according to the equation Li 3 N ( s ) + 3 H 2 O ( l ) ⟶ NH 3 ( g ) + 3 LiOH ( aq ) Li3N(s)+3H2O(l)⟶NH3(g)+3LiOH(aq) Heavy water is water with the isotope deuterium in place of ordinary hydrogen, and its formula is D 2 O . D2O. The same reaction can be used to produce heavy ammonia, ND 3 ( g ) , ND3(g), according to the equation Li 3 N ( s ) + 3 D 2 O ( l ) ⟶ ND 3 ( g ) + 3 LiOD ( aq ) Li3N(s)+3D2O(l)⟶ND3(g)+3LiOD(aq) Calculate how many grams of heavy water are required to produce 465.0 mg ND 3 ( g ) . 465.0 mg ND3(g). The mass of deuterium, D , D, is 2.014 g/mol.

it is the most commonly accepted one

answer: - first one is the correct answer. .

explanations: - potassium sulfide is and cobalt(ii) chloride is .

charge on k is +1, charge on s is -2, charge on co is +2 and charge on cl is -1.

in a double replacement reaction the ion exchange takes place. in general the reaction looks like:

if one of the product is insoluble as per solubility rules then a precipitate of it is formed.

when we mix the aqueous solutions of potassium sulfide and cobalt(ii) chloride then chloride ion goes with potassium ion and sulfide ion goes with cobalt ion and the balanced equation is written as:

k and cl has equal charges, similarly co and s has equal charges and hence no subscripts are used for the product side.

as per the solubility rules, cos is insoluble and so it's precipitate is formed.

looking at the given choices, first choice is correct.