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Serggg [28]
3 years ago
13

Dicing potatoes is a physical change. true or false?

Chemistry
2 answers:
kap26 [50]3 years ago
8 0
Yes that is true because physical changes change the shape or size of the objects but it is still in the same form. Chemical changes change the item completley. Please give brainliest, thank you and have a blessed day
DIA [1.3K]3 years ago
7 0
Hello there!

The answer to this is True. Although you cannot reverse a cut potato, it's still considered a physical change because its composition of matter remained the same. If you were to, for example, deep-fry the potato, that would already be a chemical change. Because, the potato's composition of matter changed due to the oil that fried it. 

Hope I helped!
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Zinc reacts with iron (iii) chloride yielding zinc chloride plus iron
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Answer:

I don't see a specific question, so I'll make a few comments and hope that answers the reason for the post.

Explanation:

Zinc(Zn) does react with iron chloride, since zinc is a more reactive metal than the iron.

When Zn is introduced to an iron (III) chloride solution, the Zn disoplaces the Fe atom in a displacement reaction.

The chemical equation of the reaction:

Zn + Fe(III)Cl3 → ZnCl3 + Fe

Energy is often realeased in this type of reaction, since the resulting chemical products have a lower energy that the reactants.

There are several metals more reactive than iron.  One of the more interesting examples of a highly exothermic reaction with iron chloride (rust) is the reaction of aluminum with iron chloride.  `This is highly exothermic and is labelled a thermite reaction.  It provides a spectacular flame that is not enough to weld railroad tracks together.

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6 0
3 years ago
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antiseptic1488 [7]
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3 years ago
Calculate the number of moles in 7.41 X 1017 atoms Ag.
jolli1 [7]

Answer:

1.23x10^-6 mole

Explanation:

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Now, 1f 1mole of Ag contains 6.02x10^23 atoms, then Xmol of Ag will contain 7.41x10^17 atoms i.e

Xmol of Ag = 7.41x10^17/6.02x10^23 = 1.23x10^-6 mole

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Answer:

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