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laiz [17]
2 years ago
7

The following bar graph shows the population of bacteria under different temperature ranges.

Chemistry
2 answers:
rusak2 [61]2 years ago
7 0

Answer:

the answer is c between 20 and 30(c) you duck

Explanation:

Inessa [10]2 years ago
6 0

Answer:

the answer is c

Explanation:

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The molar mass of vitamin A (C20H30O).
vivado [14]
Molar mass of C:  12.011 g/mol
The equation says C20, which means there are 20 carbon atoms in each molecule of Vitamin A.  So, we multiply 12.011 by 20 to get 240.22 g/mol carbon.

Molar mass of H:  1.0079 g/mol
The equation says C30, which means there are 30 hydrogen atoms in each molecule of Vitamin A. So, we multiply 1.0079 by 30 to get 30.237 g/mol hydrogen.

Molar mass of O: 15.999 g/mol
The equation says O without a number, which means there is only one oxygen atom in each molecule of Vitamin A.  So, we leave O at 15.999 g/mol.

Then, just add it up:
240.22 g/mol C + 30.237 g/mol H + 15.999 g/mol O = 286.456 g/mol C20H30O

So, the molar mass of Vitamin A, C20H30O, is approximately 286.5 g/mol.
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3 years ago
I’m not sure what the answer is
Sergio [31]
I believe it’s the third option
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DENIUS [597]

The physical properties of alkenes and alkynes are generally similar to those of alkanes or cycloalkanes with equal numbers of carbon atoms. Alkynes have higher boiling points than alkanes or alkenes, because the electric field of an alkyne, with its increased number of weakly held π electrons, is more easily distorted, producing stronger attractive forces between molecules.

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The oceanic crust is mostly associated with the —————.
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I think it would the hydrosphere
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2 years ago
Please I need help with this question.​
7nadin3 [17]

Answer:

c?

Explanation:

7 0
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