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Yakvenalex [24]
3 years ago
6

When hydrogen atoms are energized by electricity, what is observed?

Chemistry
1 answer:
kotykmax [81]3 years ago
6 0
When  hydrogen atoms are energized by electricity, an emission spectrum of specific colors occurs because of the different wavelengths. 
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A 150 mL of oxygen gas is collected over water at 20 °C and 758 torr. What volume will the same sample of oxygen occupy at STP w
Stella [2.4K]

Answer:

The volume would be; 136.17 ml

Explanation:

Volume V1 = 150 mL

Temperature T1 = 20°C + 273 = 293 K

Pressure  P1 = 758 - 17.54 = 740.46 torr

At STP;

Volume V2 = ?

Pressure P2 = 760 torr

Temperature T2 = 273 K

Using the general gas equation;

P1V1 / T1   = P2V2 / T2

Making V2 subject of formulae;

V2 = P1V1T2 / T1P2

Inserting the values we have;

V2 = 740.46 * 150 * 273  /  293 * 760

V2 = 136.17 ml

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3 years ago
Dalton's atomic theory stated?
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John Dalton in d year 1808 proposed d atomic theory.. 1.All elements are made up of small, indivisble particles called atoms. 2.Atoms can neither be created nor destroyed. 3.Atoms of d same element are alike in every aspect, &differ from atoms of all other elements. 4. When atoms combine with other atoms, they do so in simple ratios.
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3 years ago
What factors mechanical weathering ?. <br><br><br> Earth Science.
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Answer:

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those are some factors I know

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3 years ago
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