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professor190 [17]
3 years ago
15

Which of the following is not a physical change?

Chemistry
1 answer:
eimsori [14]3 years ago
6 0
Combustion is not a physical change instead it's a chemical change because when we burn things we cannot regain it's original form.
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You have 0.21 moles of Al how many atoms do you have
ZanzabumX [31]

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<h3>Further explanation  </h3>

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\tt N=0.21\times 6.02\times 10^{23}\\\\N=1.26\times 10^{23}

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