1.) Identify which of the following are examples of chemical
equilibrium:
a.) 2NO2 <==> N2O4
b.) 2H2O <==> 2H2 + O2
c.) N2 + 3H2 <==> 2NH3 + heat
d.) H2 + I2 <==> 2HI
2007-01-09 16:50:18 · 7 answers · asked by Pearl 2 in Science & Mathematics ➔ Chemistry
a is the correct answer.
b. is incorrect because water does not spontaneously dissociate into hydrogen and oxygen molecules. It takes energy to make that happen so the reaction is irreversible, ergo equilibrium is not possible.
c. is incorrect because N2 and H2 are gasses, that do not exist in equilibrium in solution. NH3 dissolved in water will form equilibrium with NH4OH
d. Is an irreversible reaction.
2007-01-09 17:12:54 · answer #1 · answered by The answer guy 3 · 0⤊ 0⤋
Any reaction that can proceed in both directions is an example of chemical equilibrium. Since the arrows are double-headed, they are all equilibrium equations.
Each of the equations are balanced, so this was not a clue.
2007-01-09 17:06:45 · answer #2 · answered by teachbio 5 · 0⤊ 0⤋
B
there are 4 hydrogens on both sides and 2 oxygens on both sides
to find out how many atoms there are multiply the front number by the small number after it. when there is no small number after it there is only one. When there are more than one atoms together, like in D, you multiply the front number by all of the small numbers.
when the outcome is a singal molecule (A and D) the number infront of the atoms is how many molecules there are.
2007-01-09 16:55:38 · answer #3 · answered by jake 5 · 0⤊ 1⤋
B is correct answer.
2007-01-09 20:17:49 · answer #4 · answered by Andreja K 3 · 1⤊ 0⤋
c and d
2007-01-09 17:04:26 · answer #5 · answered by jayaraman s 1 · 0⤊ 1⤋
answer d
2007-01-09 16:55:55 · answer #6 · answered by SM 2 · 0⤊ 2⤋
cuz ur gay
2016-05-23 02:17:40 · answer #7 · answered by Anonymous · 0⤊ 0⤋