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2 years ago

PLEASE HELP ME ANSWER THIS ASAP! !

Chemistry

2 answers:

lara31 [8.8K]2 years ago

8 0

Answer:

Change in velocity is -4m\s

acceleration is -2m\s^2 cause Change in velocity = final v - initial v

Explanation:

Calculating acceleration involves dividing velocity by time — or in terms of SI units, dividing the meter per second [m/s] by the second [s]. Thus the SI unit of acceleration is the meter per second squared .

joja [24]2 years ago

5 0

-4 m/s and -2 m/s2

:-)

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A gas has a volume of 590 mL at temperature of -55.0 C. What volume will the gas occupy at 30.0 C show your work

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Data:
$V_{initial} = 590\:mL$
$T_{initial} = -55.0^0C$
converting to Kelvin
TK = TC + 273
TK = -55.0 + 273 → TK = 218.0 → $T_{initial} = 218.0\:K$
$V_{final} = ? (in\:milliliters)$
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By the first Law of Charles and Gay-Lussac, we have:
$\frac{ V_{i} }{ T_{i} } = \frac{ V_{f} }{ T_{f} }$

Solving:
$\frac{ V_{i} }{ T_{i} } = \frac{ V_{f} }{ T_{f} }$
$\frac{ 590 }{ 218.0 } = \frac{ V_{f} }{ 303.0 }$
Product of extremes equals product of means:
$218.0* V_{f} = 590*303.0$
$218.0 V_{f} = 178770$
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$\boxed{\boxed{V_{f} \approx 820.04\:mL}}\end{array}}\qquad\quad\checkmark$

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3 years ago

Hexanal would be soluble in water? True or false?

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Answer:

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3 years ago

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Explanation:

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B. CS2 has greater dipole moment than CO2 and thus the dipole-dipole forces in CS2 are stronger.

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D. The dispersion forces are greater in CS2 than in CO2.

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2 years ago

PLEASE HELP ME ANSWER THIS ASAP! !​

PLEASE HELP ME ANSWER THIS ASAP! !