3 years ago

Which of the following are considered physical changes?

1 answer:

6 0

A, B, and D

Physical changes don’t change the chemical structure... rusting and burning would change the substance

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astraxan [27]

Answer:

what is the question?

Explanation:

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3 years ago

4vir4ik [10]

$\\ \sf\bull\longmapsto E=hv$

$\\ \sf\bull\longmapsto E=\dfrac{hc}{\lambda}$

$\\ \sf\bull\longmapsto E=\dfrac{6.626\times 10^{-34}Js\times 3\times 10^8ms^{-1}}{4.25\times 10^{-7}m}$

$\\ \sf\bull\longmapsto E=\dfrac{19.878\times 10^{-26}Jm}{4.25\times 10^{-7}m}$

$\\ \sf\bull\longmapsto E=4.677\times 10^{-19}J$

$\\ \sf\bull\longmapsto E=4677\times 10^{-16}J$

$\\ \sf\bull\longmapsto E=4677eV$

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2 years ago

kupik [55]

Assuming you are talking about the atomic mass of calcium chloride...
M = n/V
M = 1/3.35
M = 0.298

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3 years ago

alexandr1967 [171]

help in what??????????????????

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3 years ago

djyliett [7]

The mitosis is the cell division so it both B and C

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3 years ago