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Snezhnost [94]
3 years ago
14

Are the changes from a to b and from b to c physical or chemical changes?

Chemistry
1 answer:
Vitek1552 [10]3 years ago
6 0

Answer:

They are physical changes.

Explanation:

This is because there in no chemical reaction taking place, just a physical change.

A physical change in a change in which the chemical structure of the substance does not change. Ice, water and steam are all the same on a molecular level, thus changing from ice to water or from water to steam are physical changes.

A chemical change is a change in which the chemical structure of the substance undergoes a change, since this does not happen going for A to B or B to C they are not chemical changes.

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3 years ago
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What is the mass in grams of 9.45*10^24 molecules of methanol (CH3OH)?
Angelina_Jolie [31]
Number of moles:

1 mole ---------- 6.02x10²³ molecules
? moles --------- 9.45x10²⁴ molecules

1 x ( 9.45x10²⁴) / 6.02x10²³ =

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Therefore:

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3 years ago
What did Rutherford's gold foil experiment tell about the atom?​
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3 0
3 years ago
How would you quickly determine whether a cleaning
Leona [35]

Answer:

The answer is explained below

Explanation:

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7 0
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brilliants [131]

Answer:

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Explanation:

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2. 10⁴ molecules of H₂O

3. 8.75×10³² molecules of C₆H₁₂O₆

5 0
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