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san4es73 [151]
3 years ago
8

Help me┐(´ー`)┌thank you in advance ​

Chemistry
2 answers:
LenKa [72]3 years ago
8 0

<u>Answer</u>:

the law of conservation of mass is valid for all the following, except nuclear reactions.

<u>Explanation</u>:

the law of conservation of mass is valid for all the following, except nuclear reactions because some mass gets converted to energy.

liubo4ka [24]3 years ago
3 0

Answer:

Nuclear reactions

Explanation:

What's this law?

  • This law states that in any chemical reaction the mass is neither created nor destroyed ,it remains conserved
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You are given a liquid. Briefly describe the steps you would take to show whether it is a pure substance or a homogeneous mixtur
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By using any one technique like boiling, distillation, condensation ,etc , one can be used to distinguish between a pure substance and a homogeneous mixture.

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If the liquid is a pure substance, then it can not be separated by using physical means because all atoms of a pure substance show same properties.

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4 years ago
Exactly 1 mol Pb(ClO2)2 contains how many moles of Pb , Cl , and O ?
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<u>Step 1: </u>Data given

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