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ad-work [718]
3 years ago
9

Ella makes this table to organize her notes on whether atoms gain or lose energy during the changes of state.

Chemistry
1 answer:
Paul [167]3 years ago
4 0

Answer:

freezing, deposition, and condensation

Explanation:

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What are the characteristics of a substance in the liquid state?
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If a material, such as diamond, is very strong but gives way (ruptures) quickly when a crack forms, then it is considered _____.
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7 0
4 years ago
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What is the hydrogen deficiency index (hdi) for a compound with the molecular formula c9h10o? 5
Sav [38]

Answer:

5

Explanation:

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6 0
2 years ago
What volume of o2 at 874 mmhg and 33 ∘c is required to synthesize 18.0 mol of no?
Nataly [62]
1) Write the balanced chemical equation

4NH3 + 5O2 ----> 4NO + 6H2O

 2) Write the molar ratios

4 mol NH3 : 5 mol O2 : 4 mol NO : 6 mol H2O

3) Write the proportions with the desired quantity of NO and the unknown quantity of O2

5 mol O2 /  4 mol NO = x / 18.0 mol NO

Solve for x: x = 18.0 mol NO * 5 mol O2 / 4 mol NO = 22.5 mol O2

4) Use the ideal gas equation to convert moles to volume

pV = nRT => V = nRT / p

n = 22.5 mol

R = 0.082 atm*liter / K * mol

T = 33 + 273.15 = 306.15 K

p = 874/760 atm = 1.15 atm

V =  22.5 mol * 0.082 atm*liter/K*mol * 306.15 K / 1.15 atm = 491.17 liter

Answer: 491 liters of O2
3 0
3 years ago
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