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andreyandreev [35.5K]
3 years ago
10

Please help this is due soon

Chemistry
2 answers:
denis-greek [22]3 years ago
6 0
It’s b use the formula
Lubov Fominskaja [6]3 years ago
4 0
It’s b 20g/cm3 I hope this helps
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Determine the mass in 3.57 mol Al.
Alborosie

Answer:

b

Explanation:

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2 years ago
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What element is represented by the following electron configuration:
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For better representation, let me rewrite the electronic configuration:

<span>1s</span>²<span>2s</span>²<span>2p</span>⁶<span>3s</span>²<span>3p</span>⁶<span>4s</span>²<span>3d</span>⁴

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3 years ago
When 7.085 grams of a hydrocarbon, CxHy, were burned in a combustion analysis apparatus, 21.71 grams of CO2 and 10.37 grams of H
Taya2010 [7]

Answer:

- Empirical:

C_3H_7

- Molecular:

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Explanation:

Hello,

In this case, based on the information regarding the combustion, the moles of carbon turn out:

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Moreover, the moles of hydrogen:

n_H=10.37gH_2O*\frac{1molH_2O}{18gH_2O}*\frac{2molH}{1molH_2O}=1.152molH

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Best regards.

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3 years ago
The element least likely to form a bond is group
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Between phosphorous, sulfur, chlorine and argon, argon is the element that's the least likely to form an ionic bond with sodium.
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3 years ago
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tamaranim1 [39]

Answer:

The correct answer is - the number of days the rainwater stands in the jars.

Explanation:

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