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3 years ago

Octane (C8H18) is a component of gasoline that burns

Chemistry

1 answer:

MatroZZZ [7]3 years ago

4 0

Answer:

hold on this will take me awhile

Explanation:

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Please help with 2 chem questions thank you!

xeze [42]

The correct answers are A and C.

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When the energy is removed what will happen to a gas?

creativ13 [48]

Answer:

Hey mate 
I hope it helps

Explanation:

<h3>Removing Energy: Removing energy will cause the particles in a liquid to begin locking into place. A. Boiling and Evaporation: Evaporation is the change of a substance from a liquid to a gas. Boiling is the change of a liquid to a vapor, or gas, throughout the liquid.</h3>

<h2>PLZ MARK ME AS BRAIN LIST </h2>

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2 years ago

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PLEASE HELP ME what would be the mass of 9.03 x 1021 molecules of hydrobromic acid (HBr)?

Nikitich [7]

We know 1 mole of any atom or molecules contains $6.033 \times 10^{23}$ atom or molecules.

1 mole of HBr i.e 81 gm/mol contains $6.033 \times 10^{23}$ atom or molecules.

So, mass of $9.03\times 10^{21}$ molecules is :

$m=\dfrac{81\times 9.03\times 10^{21} }{6.033 \times 10^{23}}\\\\m= 1.21\ gm$

Therefore, mass of $9.03\times 10^{21}$ molecules is 1.21 gm .

Hence, this is the required solution.

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3 years ago

The figure below represents a reaction.What type of reaction is shown?

o-na [289]

Are you sure it isn’t SO3+H2O = H2SO4 because that would be combination (synthesis) A+ B=AB

Or SO3 + H2SO4 = H2S2O7
Because that would also be synthesis

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2 years ago

Which of the following is a synthesis reaction?

zhuklara [117]

The last one is the answer to your question. D is the answer

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2 years ago

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