3 years ago

In the equation E = mc2, what does c represent?

Chemistry

1 answer:

oksian1 [2.3K]3 years ago

8 0

Answer:

c is the speed of light

Explanation:

E: energy

m: mass

c2: speed of light squared

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A slice of pizza has 500 kcal. If we could burn the pizza and use all the heat to warm a 50-L container of cold water, what woul

gayaneshka [121]

Answer:

10°C

Explanation:

Heat gain by water = Heat lost by the slice of pizza

Thus,

$m_{water}\times C_{water}\times \Delta T=Q$

<u>For water: </u>

Volume = 50.0 L

Density of water= 1 kg/L

So, mass of the water:

$Mass\ of\ water=Density \times {Volume\ of\ water}$

$Mass\ of\ water=1 kg/L \times {50.0\ L}$

Mass of water = 50 kg

Specific heat of water = 1 kcal/kg°C

ΔT = ?

For slice of pizza:

Q = 500 kcal

So,

$50\times 1\times \Delta T=500$

ΔT = 10°C

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3 years ago

Write the full ground state electron configuration of f+.

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Answer:- $1s^22s^22p^4$ .

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$F\rightarrow F^++1e^-$

Second shell is the valence shell for fluorine and so it loses one electron from 2p to form $F^+$ and the electron configuration of the ion becomes $1s^22s^22p^4$ .

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4 years ago

What inference can be drawn from the graph?

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Explanation:

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Water is Carried to the leaves by stomata

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Answer:

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