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3 years ago

Which of the following is NOT an example of a molecule? A: Mn B: KOH C: H2S D: O3

2 answers:

7 0

Mn
This is an atom of <span>Manganese

The second one is a compound of potassium oxygen and hydrogen, the third one is a compound of 2 hydrogens and a sulfer and the fourth one, while only containing one element, is still a molecule of 3 oxygen atoms - leaving Mn as your answer.</span>

Andrews [41]3 years ago

4 0

Its either B or C. Its NOT A and D. I know that for a fact.

Hope this at least sorta helped. Have a good day! :D

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3 years ago

If 9.6 X 1021 molecules of hydrogen are reacted with excess nitrogen, how many liters of ammonia can be produced at STP?

diamong [38]

The volume of NH₃ produced at STP : 0.237 L

<h3>Further explanation</h3>

Reaction

N₂ + 3H₂ → 2NH₃

1 mol = 6.02 x 10²³ particles

9.6 X 10²¹ molecules of Hydrogen, mol :

$\tt \dfrac{9.61\times 10^{21}}{6.02\times 10^{23}}=1.596\times 10^{-2}~moles$

mol H₂ : mol NH₃ = 3 : 2

mol NH₃ :

$\tt \dfrac{2}{3}\times 1.596\times 10^{-2}=0.0106$

Conditions at T 0 ° C and P 1 atm are stated by STP (Standard Temperature and Pressure). <em>At STP, Vm is 22.4 liters/mol.</em>

The volume of NH₃ :

$\tt 0.0106\times 22.4=0.237~L$

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3 years ago

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Amanda [17]

Answer:

Adhesion and cohesion

Explanation:

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4 years ago

Energy Reaction Diagram FOR Cellular Respiration: O2 + C6H12O6 —> CO2 + H2O

Natalka [10]

Answer:

Explanation:

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3 years ago

Balance the following Chemical Equation:<br> NaBr +CaCl2-> NaCl+ CaBr2

frozen [14]

First write all of the compounds/atoms in either side then fill in existing values and balance

Na- 1
Br- 1
Ca- 1
Cl- 2

Na- 1
Cl- 1
Ca-1
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Balance to get

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3 years ago