Will mark brainliest iron chloride (fecl3) and potassium oxide (koh) react in a double displacement reaction. • what will the products of the reaction be? explain how you did this. • does this represent a chemical change or a physical change? explain how you came to your answer.

( A) The product  of double displacement reaction  between feCl3 and KOH is

KCl  and Fe(OH)3

   explanation

A double displacement    between FeCl3  and KOH reaction occurs to form KCl  and Fe(OH)3  according to below equation.

3KOH + FeCl3→   3KCl  + Fe(OH)3

Since K  is  high reactive than Fe ,K  replaces Fe   from it's compound  to form KCl  while Fe take OH to form F(OH)3

(B) The  type of  chemical change  represented is   a chemical change

This  is  because  double displacement reaction result in formation of new  products.

n2(g) + 3h2-> 2nh3(g)   this is the balanced equation

note the mole ratio between n2, h2 and nh3.   it is 1 : 3 : 2   this will be important.

moles n2 present = 28.0 g n2 x 1 mole n2/28 g = 1 mole n2 present

moles h2 present = 25.0 g h2 x 1 mole h2/2 g = 12.5 moles h2 present

based on mole ratio, n2 is limiting in this situation because there is more than enough h2 but not enough n2.

moles nh3 that can be produced = 1 mole n2 x 2 moles nh3/mole n2 = 2 moles nh3 can be produced

grams of nh3 that can be produced = 2 moles nh3 x 17 g/mole = 34 grams of nh3 can be produced

note:   the key to this problem is recognizing that n2 is limiting, and therefore limits how much nh3 can be produced.

your answer is c) plasma

~*"auba14"*~