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Bingel [31]
3 years ago
14

Which of the following statements is false?

Chemistry
1 answer:
natka813 [3]3 years ago
3 0

Answer:

B

Explanation:

I think B is false because you should communicate with all sorts of people, in order to learn different views/sides of something.

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What is produced/made when our food is burned? ____________ + ____________ + __________ *
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Oxygen has an atomic number of 8. in order to fill its outer electron shell, how many electrons does it need?
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3 years ago
Ammonia chemically reacts with oxygen gas to produce nitric oxide and water . What mass of water is produced by the reaction of
Kay [80]

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

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4 0
2 years ago
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