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2 years ago

Which energy transformation takes place in a gasoline lawn mower?

Chemistry

2 answers:

8_murik_8 [283]2 years ago

8 0

A lawn mower works by converting chemical energy (energy stored in the gas) to mechanical energy.

fenix001 [56]2 years ago

6 0

Hey there!!

A lawn mower works by converting chemical energy (energy stored in the gas) to mechanical energy.

Hope this helps you and have a great day!!!! I wish you the best of luck (:

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Molecular polarity has a direct effect on the behavior of molecular compounds. The attractive forces between polar molecules are

Blababa [14]

Answer:

Stronger

Greater

Higher

Explanation:

Molecules are held together by intermolecular forces. These are forces that act between molecules in a particular state matter. Intermolecular forces depend on the nature of the molecule.

For polar molecules, the intermolecular forces are stronger thus it takes more energy to separate them leading to a higher boiling point of polar molecules irrespective of their molecular mass.

8 0

2 years ago

What could J. J. Thomson conclude from his experiments?

finlep [7]

Answer:

He concluded that atoms contain small negatively charged particles that are called electrons.

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2 years ago

Read 2 more answers

Which statement is true about matter?

sergeinik [125]

Answer:

Explanation:

This is because matter is anything that has mass and occupies space.Therefore the space occupied by matter is volume

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2 years ago

Alveoli are tiny sacs of air in the lungs. Their average diameter is 4.50 × 10−5 m. Calculate the uncertainty in the velocity of

Arisa [49]

Answer: The uncertainty in the velocity of oxygen molecule is $4.424\times 10^{-5}m/s$

Explanation:

The diameter of the molecule will be equal to the uncertainty in position.

The equation representing Heisenberg's uncertainty principle follows:

$\Delta x.\Delta p=\frac{h}{2\pi}$

where,

$\Delta x$ = uncertainty in position = d = $4.50\times 10^{-5}m$

$\Delta p$ = uncertainty in momentum = $m\Delta v$

m = mass of oxygen molecule = $5.30\times 10^{-26}kg$

h = Planck's constant = $6.627\times 10^{-34}kgm^2/s^2$

Putting values in above equation, we get:

$4.50\times 10^{-5}m\times 5.30\times 10^{-26}kg\times \Delta v=\frac{6.627\times 10^{-34}kgm^2/s}{2\times 3.14}\\\\\Delta v=\frac{6.627\times 10^{-34}kgm^2/s^2}{2\times 3.14\times 4.50\times 10^{-5}m\times 5.30\times 10^{-26}kg}=4.424\times 10^{-5}m/s$

Hence, the uncertainty in the velocity of oxygen molecule is $4.424\times 10^{-5}m/s$

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3 years ago

In which location would you expect to find the greatest species diversity?!

Crank

I believe the answer is Canada!

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3 years ago