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77julia77 [94]
3 years ago
5

What on earth is the oxidation number of N in N2H4?

Chemistry
1 answer:
Levart [38]3 years ago
5 0
N₂H₄ :

N =  - 2  

H = + 1

 2 * ( -2 ) + ( 1 * 4 ) =  - 4 + 4 = 0

hope this helps!

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17) Chlorine and Fluorine react to form gaseous chlorine trifluoride. You start with 1.75 mole of chlorine and 3.68 moles of flu
Mama L [17]

Answer:

a) Cl_2 + 3F_2 \rightarrow 2ClF_3

b) F_2 is the limiting reagent

c) Moles of ClF_3 produced = 2.45 mol

b) Moles of Cl_2 left = 1.75 -1.22 = 0.53

Explanation:

a) Balanced reaction:

Cl_2 + 3F_2 \rightarrow 2ClF_3

b)

No. of mole of Cl_2 = 1.75\ mol

No. of mole of F_2 = 3.68\ mol

Cl_2 + 3F_2 \rightarrow 2ClF_3

As, it is clear from the reaction that,

1 mol of Cl_2 requires 3 moles of F_2

1.75 mol of Cl_2 require = 1.75 × 3 = 5.25 mol of F_2

As, only 3.68 mol of F_2 is present, so F_2 is the limiting reagent.

c)

3 moles of F_2 form 2 moles of ClF_3

3.68 moles of F_2 will form = \frac{2}{3}  \times 3.68 = 2.45\ mol\ of\ ClF_3

d)

Cl_2 is present in excess.

3 moles of F_2 requires 1 mol of Cl_2

3.68 moles of F_2 will require = \frac{1}{3} \times 3.68 = 1.22\ mol\ of\ Cl_2

Cl_2 left = 1.75 -1.22 = 0.53 mol

6 0
4 years ago
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What has less energy than visible light in the electromagnetic spectrum?
QveST [7]
Infrared waves, micro waves, radio waves because they are weaker.
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3 years ago
How do electrons of an element determine that element's reactivity?
Nezavi [6.7K]

Answer:

The number of electrons in the outermost shell of an atom determines its reactivity. Noble gases have low reactivity because they have full electron shells. Halogens are highly reactive because they readily gain an electron to fill their outermost shell.

Explanation:

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Answer:

ecosystem diversity

Explanation:

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5 0
2 years ago
Pierce conducts an experiment in which waves collide in a way that the energy increases, which means that has occurred
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<h2>Answer:</h2>

It means the waves collides and constructive interference occurred.

<h3>Explanation:</h3>

If the two waves coming from the opposite direction collide with each other, there are two way of their interference.

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Hence in experiment there will be constructive interference.

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