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emmasim [6.3K]
3 years ago
10

I need help ASAP please!​

Chemistry
1 answer:
Dimas [21]3 years ago
7 0

Answer:

The mass is 12.0107 but it rounds up to 12

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nirvana33 [79]

I am not sure but rocky bodies ranging from large to small in size

6 0
3 years ago
An unknown compound contains only carbon, hydrogen, and oxygen (). Combustion of 7.50 of this compound produced 11.0 of carbon d
Sergeu [11.5K]
<span>Firstly, we know that M= m/n,  the main formula which shows the relationship between m, n, and M. The nknown compound contains only carbon, hydrogen, and oxygen, so we can get n(C)=m/M,  from M(C)= m(C)/n (C),  besides the stoechiometric equality, we have </span>

n( C)= m(C)/M(C ) = m(CO2)/ M(CO2)=11/44, because m(CO2)=11.0,  M(CO2)=44.01

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5 0
4 years ago
Which of the following would be expected to be good solvents for cyclopentane. Choose all that apply. toluene, CgH5CH3 cyclohexa
Alik [6]

Answer:

cyclohexane

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Solubility is determined by the principle ,  "like dissolves like" .

i.e. , if a compound is polar then it will dissolve in a polar compound only , and

if a compound is non - polar then it will dissolve in a non - polar compound only .

Hence , from the question ,

a good solvent for cyclopentane would be cyclohexane ,

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the other options mentioned are polar .

8 0
3 years ago
What does atomic mass count?
belka [17]
Atomic mass is the sum of the masses of the protons, neutrons, and electrons in an atom
5 0
3 years ago
The winter solstice is the shortest day of the year in the northern hemisphere. Please select the best answer from the choices p
Natalka [10]

Answer: The given statement is true.

Explanation:

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During this time sun is farthest from the earth's both hemispheres.

Hence, the given statement is true.

5 0
4 years ago
Read 2 more answers
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