3 years ago

Which of the following best describes Biology

Physics

2 answers:

IRISSAK [1]3 years ago

6 0

Answer:

Explanation:

:)))))

valkas [14]3 years ago

3 0

A. Is the correct answer.

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alekssr [168]

Answer:

$1.2646\times10^{25}\ atoms$

Explanation:

-The chemical formula for Molybdenum (V) Dichromate is $Mo(Cr_2O_7)_3$

-There are 21 moles of oxygen per one mole of Molybdenum (V) Dichromate

-We apply Avogadro's constant to find the number of atoms of oxygen:

$Avogadro's \ Constant=6.022\times 10^{23} \ mol_1\\\\No\ of \ Atoms=Moles\times Avogadro's \ Constant\\\\=21\times 6.022\times 10^{23} \\\\=1.2646\times10^{25}\ atoms$

Hence, there are $1.2646\times10^{25} \ atoms$

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3 years ago

When the rubber sheet is pulled down, the volume of the bell jar is ____________ and the pressure in the bell jar is ___________

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Answer:

increases, decreases, respiration

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2 years ago

20 miles per hour north is an example of ______

timofeeve [1]

B. It's an example of velocity due to the fact that it has a measurement of speed, divided by time, and has a specific direction. Acceleration doesn't have any direction on it, but has speed divided by time. C and D have a different mode of measurement despite of the fact that it still needs meters/miles/km.

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3 years ago

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C. rollback

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The retina of the eye is located inside the eye making it impossible for the retina to roll back. Only the eye itself can rollback.

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