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oksian1 [2.3K]
3 years ago
14

Given the balanced equation representing a reaction:

Chemistry
1 answer:
Vilka [71]3 years ago
5 0
(2) a base because they accept H+ ions. NH3 is the conjugate base of NH4+.
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How can a hydrogen atom, which has only one electron, have so many spectral lines?
kow [346]

Answer:

The hydrogen atom has just one electron, but many spectral lines. However it contains many shells and the movement of that electron from one shell to another causes the release of energy and also an emission of photons.

A spectral line are dark or bright lines formed within a specific frequency range which differ from other frequencies.Because of the difference of energy for the various shells, it produces different wavelengths and this is the reason for the many spectral line for hydrogen.

6 0
3 years ago
The pressure on 150 mL of a gas is increased from 500 mm Hg to 700 mm Hg at constant temperature. What is the new volume of the
Ivanshal [37]

Answer:

Option A. 107 mL

Explanation:

From the question given above, the following data were obtained:

Initial volume (V₁) = 150 mL

Initial pressure (P₁) = 500 mmHg

Final pressure (P₂) = 700 mmHg

Temperature = constant

Final volume (V₂) =?

The final volume of the gas can be obtained by using the Boyle's law equation as shown below:

P₁V₁ = P₂V₂

500 × 150 = 700 × V₂

75000 = 700 × V₂

Divide both side by 700

V₂ = 75000 / 700

V₂ = 107 mL

Therefore, the final volume of the gas is 107 mL.

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3 years ago
What would you need to do to calculate the molality of 10 mol of NaCl in 200
Makovka662 [10]
It will be the second one
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One difference between plant and animal cells is that animal cells do not have
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Chloroplasts.

Plants use chloroplasts to create their own energy by using sunlight.

3 0
4 years ago
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In the formate ion, hco2− which of the atoms in the ion have pπ orbitals?
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