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Pavlova-9 [17]
2 years ago
9

20 points! Help please

Chemistry
2 answers:
Olin [163]2 years ago
5 0

Answer: 2N2O3 -> 2N2 + 3O2

Explanation:

Anton [14]2 years ago
4 0

Answer:

2 2 3

Explanation:

2N2O3=2N2+3O2.. ....

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Answer:

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Explanation:

5 0
3 years ago
What is the mass percent of nitrogen in:<br><br> 1. N2O<br> 2. NO<br> 3. NO2<br> 4. N2O2
Temka [501]
We’re going to use the mass percent formula shown below:



For the percent by mass N, we’re going to rewrite the equation as:

98% (271 ratings)
View Complete Written Solution
Problem Details
Calculate the mass percent composition of nitrogen in each nitrogen-containing compound:

c. NO2
5 0
2 years ago
How many molecules are in 643.21 grams of Mg3(PO4)2?
Eva8 [605]

Answer:

643.21g  1 mol  6.022^23

262.87 g   1 mol

= 1.4735E24     [Mg3(PO4)2]

4 0
2 years ago
Which unit is used for measuring atomic mass? A. atomic mole B. grams/mole C. grams D. atomic mass unit E. atomic mass weight
mihalych1998 [28]

The atomic mass is defined as the mass an atom of an element. The atomic mass in approximation is equal to the sum of number of neutrons and protons in the nucleus of an atom (mass number). The units which are used for measuring the atomic mass is atomic mass unit, u.

Thus, the correct option is option E that is atomic mass unit is used for measuring atomic mass.

7 0
2 years ago
Read 2 more answers
As a boy was it a balloon its volume increases
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What is Avogadro’s Law
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