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3 years ago

15

Please help. thank you!

1 answer:

Elenna [48]3 years ago

3 0

Answer:

Mercury chemical bond with aluminum, AKA aluminum amalgam

Explanation:

After the protective oxide layer on aluminum is broken, if mercury were to come into contact with it, then the aluminum will bond with the mercury and will create this interesting tower looking thing upwards. You can learn more about this by searching up Aluminium amalgam, where there is plenty of info about it.

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( They don't do photosynthesis since they are much different from plants)

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Explanation:

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3 years ago

A chunk of tin weighing 18.5 grams and originally at 97.38 °C is dropped into an insulated cup containing 75.7 grams of water at

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Answer:

The final temperature of the water is 22.44°C.

Explanation:

Heat lost by tin will be equal to heat gained by the water

$-q_1=q_2$

Mass of tin = $m_1=18.5 g$

Specific heat capacity of tin = $c_1=0.21 J/g^oC$

Initial temperature of the tin = $T_1=97.38^oC$

Final temperature = $T_2$ =T

$q_1=m_1c_1\times (T-T_1)$

Mass of water= $m_2=75.7 g$

Specific heat capacity of water= $c_2=4.184 J/g^oC$

Initial temperature of the water = $T_3=21.52^oC$

Final temperature of water = $T_2$ =T

$q_2=m_2c_2\times (T-T_3)$

$-q_1=q_2$ (Law of Conservation of energy)

$-(m_1\times c_1\times (T-T_1))=m_2\times c_2\times (T-T_3)$

On substituting all values:

$-(18.5 g\times 0.21 J/g^oC\times (T-97.38^oC))=75.7 g\times 4.184 J/g^oC\times (T-21.52 ^oC)$

we get, T = 22.44°C

The final temperature of the water is 22.44°C.

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3 years ago

What is the correct Lewis structure for group 5A element arsenic?

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I believe the anwer is A

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4 years ago

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