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son4ous [18]
3 years ago
10

Which is a polyatomic ion? A. O2– B. Mg2+ C. NH4+ D. Na+

Chemistry
2 answers:
lilavasa [31]3 years ago
7 0
C is the answer NH4+
Furkat [3]3 years ago
5 0
The answer would be ammonium: NH4+ (C.)
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1.267 x 10 ^ 24 is the total number of atoms

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What is true regarding the calculation in redox titration? group of answer choices moles of the oxidant equal mole of the reduct
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4 0
2 years ago
An 84.84 g sample of steel is added to a 100-ml graduated cylinder with 45.0 ml of water. if the resulting water level is 55.5 m
Elden [556K]
The volume of the steel that is described above is obtained by water displacement method. This means that the volume can be calculated by subtracting the initial volume from the final volume. This will give us an answer of,
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6 0
3 years ago
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How many moles of ammonium nitrate are there in 32.5 mL of<br> a0.125 M NH4NO3 solution?
Nady [450]

<u>Answer:</u> The number of moles of ammonium nitrate is 0.004 moles.

<u>Explanation:</u>

To calculate the number of moles for given molarity, we use the equation:

\text{Molarity of the solution}=\frac{\text{Moles of solute}\times 1000}{\text{Volume of solution (in mL)}}

We are given:

Molarity of NH_4NO_3 solution = 0.125 M

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Putting values in above equation, we get:

0.125M=\frac{\text{Moles of }NH_4NO_3\times 1000}{32.5mL}\\\\\text{Moles of }NH_4NO_3=0.004mol

Hence, the number of moles of ammonium nitrate is 0.004 moles.

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3 years ago
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Vika [28.1K]

Answer:

True

Explanation:

3 0
3 years ago
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