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DIA [1.3K]
3 years ago
10

KMnO4 Assign oxidation numbers to each element in this compound.

Chemistry
1 answer:
zysi [14]3 years ago
8 0

K=+1

Mn= +7

O= -2

That’s it!!!

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How many moles of H2O are needed to produce 5.6 mol of NaOH?<br> Na2O + H2O --&gt; 2NaOH
navik [9.2K]

Answer: 2.8 moles

Explanation:

The balanced equation below shows that 1 mole of sodium oxide reacts with 1 mole of water to form 2 moles of sodium hydroxide respectively.

Na2O + H2O --> 2NaOH

1 mole of H2O = 2 moles of NaOH

Let Z moles of H2O = 5.6 mole of NaOH

To get the value of Z, cross multiply

5.6 moles x 1 mole= Z x 2 moles

5.6 = 2Z

Divide both sides by 2

5.6/2 = 2Z/2

2.8 = Z

Thus, 2.8moles of H2O are needed to produce 5.6 mol of NaOH

3 0
3 years ago
Specific Heat Practice
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Answer:

See below

Explanation:

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3 0
2 years ago
How would you define self awareness
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3 0
3 years ago
An element containing a charge.
Zanzabum

Answer:

That means an atom with a neutral charge is one where the number of electrons is equal to the atomic number. Ions are atoms with extra electrons or missing electrons. When you are missing an electron or two, you have a positive charge. When you have an extra electron or two, you have a negative charge

5 0
3 years ago
Read 2 more answers
Determine the density of a liquid from the following data: Mass of the
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Answer:0.477 g/ml

Explanation:

Density=(40.14-33.79)/13.3 ml

Density=6.35/13.3

Density=0.477 g/ml

6 0
3 years ago
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