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does anyone know the answers to these questions? ive spent all day trying to figure them out and i cant. thanks!!

what is conserved in the reaction shown here: H sub 2 (g) +Cl sub 2 (g)--> 2HCl (g)

what is conserved in the reaction shown here: N sub 2 (g) + 3F sub 2 (g)--> 2NF sub 3 (g)

in the reaction 2CO(g) + O sub 2 (g)-->2CO sub 2 (g), what is the ratio of moles of oxygen used to moles of CO sub 2 produced?

2007-02-25 09:05:41 · 2 answers · asked by kittylover61891 2 in Science & Mathematics Chemistry

2 answers

H2+Cl2--->2HCl
mass is conserved

N2+3F2--->2NF3
mass is conserved

In each case because they are balanced the law of conservation of matter was followed, you can not create or destroy matter.

2CO+O2--->2CO2

The ratio is taken from the equation, 1 mole of O2 to each 2 moles of CO2. It could be expressed 1/2 mole O2 to 1CO2

2007-02-25 09:14:49 · answer #1 · answered by science teacher 7 · 0 0

in reaction 1, volume is conserved.

not sure about reacion 2.

Reaction 3 is 1:2

he above answer, that mass is conserved, is correct, bu not what is being asked. Mass is always conserved in every reaction every time.

2007-02-25 17:20:56 · answer #2 · answered by Matthew P 4 · 0 0

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