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vodomira [7]
4 years ago
9

Which source is most likely an authority on the subject

Chemistry
2 answers:
german4 years ago
7 0
Please put the answers!
cestrela7 [59]4 years ago
4 0

Answer:

Dr. Patel, a cardiologist, presents her findings on heart disease

Explanation:

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What diffuses more quickly: tetracarbon decahydride (C4H10) or iodine (12)? By how much?
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Answer: Butane will effuse more quickly because it has a smaller molar mass

Explanation:

Molar mass of C4H10 = 58.123 g/mole

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3 years ago
2.91 moles of aluminum are how many grams(with work)
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3 years ago
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Draw the Lewis structure for methane (CH4) and ethane (C2H6) in the box below. Then predict which would have the higher boiling
Alinara [238K]

Answer:

Ethane would have a higher boiling point.

Explanation:

In this case, for the lewis structures, we have to keep in mind that all atoms must have <u>8 electrons</u> (except hydrogen). Additionally, each carbon would have <u>4 valence electrons</u>, with this in mind, for methane we have to put the hydrogens around the carbon, and with this structure, we will have 8 electrons for the carbon. In ethane, we will have a bond between the carbons, therefore we have to put three hydrogens around each carbon to obtain 8 electrons for each carbon.

Now, the main difference between methane and ethane is an <u>additional carbon</u>. In ethane, we have an additional carbon, therefore due to this additional carbon, we will have <u>more area of interaction</u> for ethane. If we have more area of interaction we have to give <u>more energy</u> to the molecule to convert from liquid to gas, so, the ethane will have a higher boiling point.

I hope it helps!

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3 years ago
Which body part transports oxygen, removes waste materials, and carries nutrients to the body as part of the circulatory system?
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Blood, transports oxygen, removes waste materials, and carries nutrient to the body.
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