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FinnZ [79.3K]
3 years ago
11

Item 4

Chemistry
1 answer:
Mariulka [41]3 years ago
8 0

Answer:

c

Explanation:

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Oxidation state of Nitrogen in N2O5​
balandron [24]

Explanation:

Oxidation state of Nitrogen in N2O5 is +5

7 0
2 years ago
How many grams is needed to make the following solution?
Lisa [10]

Answer:

c

Explanation:

yxyyyxyxxyxxy yy y gg ff ff d d f t r rr rr rr rr r r t tt t

3 0
3 years ago
A compound decomposes by a first-order process. if 25.0% of the compound decomposes in 60.0 minutes, the half-life of the compou
Tom [10]
Answer:<span>d. 145 minutes
</span>
Half-life is the time needed for a radioactive to decay half of its weight. The formula to find the half-life would be:

Nt= N0 (1/2)^ t/h

Nt= the final mass
N0= the initial mass
t= time passed
h= half-life

If 25.0% of the compound decomposes that means the final mass would be 75% of initial mass. Then the half-live for the compound would be:
Nt= N0 (1/2)^ t/h
75%= 100% * (1/2)^ (60min/h)
3/4= 1/2^(60min/h)
log2 3/4 = log2 1/2^(60min/h)
0.41503749928 = -60min/h
h= -60 min / 0.41503749928= 144.6min 
3 0
3 years ago
Which of the following identifies the initial type of energy needed to power a hydro plant?
MAXImum [283]

Answer:

kinetic

Explanation:

kinetic energy starts the motion of water which in turn converts electricity

7 0
3 years ago
How many minutes are there in 3417 seconds
Rudiy27

Answer:56.95 minutes

Explanation:

3417/60=56.95

4 0
3 years ago
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