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Elan Coil [88]
3 years ago
10

The coefficients in a balanced chemical equation represent

Chemistry
1 answer:
Dafna1 [17]3 years ago
8 0
The coefficients in a chemical equation represent the molar ratio of the substances.

For example, if an equation says 2H2 + O2 ⇒ 2H2O, it means
2 moles of H2 + 1 mol of O2 ⇒ 2 moles of H2O.
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Most of the mass of an atom is contained:
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Most of the mass of an atom is in the Nucleus.
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Leya [2.2K]

Answer:

Decomposition.

Explanation:

It is decomposition, result is 2H2+O2, hope it is correct.

5 0
3 years ago
A chemist must dilute 47.2 mL of 150. mM aqueous sodium nitrate solution until the concentration falls to . He'll do this by add
erma4kov [3.2K]

Answer:

0.295 L

Explanation:

It seems your question lacks the final concentration value. But an internet search tells me this might be the complete question:

" A chemist must dilute 47.2 mL of 150. mM aqueous sodium nitrate solution until the concentration falls to 24.0 mM. He'll do this by adding distilled water to the solution until it reaches a certain final volume. Calculate this final volume, in liters. Be sure your answer has the correct number of significant digits. "

Keep in mind that if your value is different, the answer will be different as well. However the methodology will remain the same.

To solve this problem we can<u> use the formula</u> C₁V₁=C₂V₂

Where the subscript 1 refers to the concentrated solution and the subscript 2 to the diluted one.

  • 47.2 mL * 150 mM = 24.0 mM * V₂
  • V₂ = 295 mL

And <u>converting into L </u>becomes:

  • 295 mL * \frac{1 L}{1000mL} = 0.295 L

6 0
4 years ago
Read: https://kids.britannica.com/kids/article/DNA/390730 (Links to an external site.)
kompoz [17]

Answer:

im not doing your whole homework. but ill give you  one cent ;>, whats ur paypal

Explanation:

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3 years ago
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podryga [215]

1.00mol is the correct answer

6 0
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