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IrinaVladis [17]
2 years ago
11

Valora la importancia de los alcoholes dentro de la medicina e industria indagando riesgos MEDICINA​

Chemistry
1 answer:
VikaD [51]2 years ago
5 0

Answer:

diwjjwjdnsjakkakakalalskb

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Ammonia chemically reacts with oxygen gas to produce nitric oxide and water . What mass of water is produced by the reaction of
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Full Question:

Ammonia chemically reacts with oxygen gas to produce nitric oxide and water. What mass of water is produced by the reaction of 7.7g of ammonia?

Be sure your answer has the correct number of significant digits.

Answer:

12.23g ≈ 12g (2 s.f)

Explanation:

Ammonia chemically reacts with oxygen gas to produce nitric oxide and water. The balanced chemical reaction is given as:

4 NH3 + 5 O2 ------->  4 NO + 6 H2O

From the reaction;

4 mole of ammonia reacts to produce 6 moles of water

From the question;

Moles = mass / molar mass

From the question;

moles of ammonia = mass / molar mass = 7.7 / 17 = 0.4529moles

Number of moles of water produced;

4 = 6

0.4529 = x

x = (0.4529 * 6 )  / 4

x = 0.67935moles

Mass of water =  moles * molar mass = 0.67935 * 18 = 12.23g ≈ 12g (2 s.f)

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C

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The chemical energy stored in the match changed to thermal energy and light energy.

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If 1 inch = 2.54cm how much cm = 1 foot?
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30.48 cm equals a foot

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What is the reasoning for the location of sodium in the periodic table
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Due to it's electronic configuration w/c is 1s2 2s2 2ps 3s1 considering the last w/c is  3s1, sodium should be in row 3 period a1.
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NO BOTS PLEASE HELP
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Answer:

C. 10.540 moles

Explanation:

divide grams by molar mass to get moles

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