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Dahasolnce [82]
3 years ago
15

What is the oxidation number of each nitrogen atom (N) in calcium nitrate (Ca(NO3)2)? (3

Chemistry
1 answer:
Dmitry_Shevchenko [17]3 years ago
6 0
Yes 5a is equal to 81 for fraction equally
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If a man has a mass of 83 kilograms on Earth, what will the force of gravity on his body be on the moon? A. 135.6 N B. 318.5 N C
diamong [38]
First, we need to know what's the gravity value in the moon. it is 1.622 m/ s2

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force= 83 kg x 1.622= 134.6

A is the closest choice.
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Name one other organ system that would be affected if it had no marrow.Explain?
muminat
It can possible be you're arteries or also you're intestines with is large and small.

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a 10.99g sample of NaBr contains 22.34% Na by mass. Considering the law of constant composition (define proportions), how many g
leonid [27]

Given :

A 10.99 g sample of NaBr contains 22.34% Na by mass.

To Find :

How many grams of sodium does a 9.77g sample of sodium bromine contain.

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By law of constant composition , in any given chemical compound, the elements always combine in the same proportion with each other.

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Percentage of Na in 9.77 g NaBr is 22.34 % too .

Gram of Na = 9.77\times \dfrac{22.34}{100}=2.18\ g .

Hence , this is the required solution .

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What historical event of commercial interest triggered investigation in the science of steam?
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