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3 years ago

SOMEONE PLS HELP ME ITS URGENT

Chemistry

2 answers:

stiks02 [169]3 years ago

7 0

Answer:

copper is less reactive than iron

Explanation:

=>According to the reactivity series of metals copper is the least reactive metal thus is displaced by iron

Simora [160]3 years ago

5 0

If copper is heated with iron oxide there is no obvious reaction because

copper is less reactive than iron.

On a reactivity chart, copper is far below iron. This makes it impossible for a replacement reaction to occur, so the equation doesn't change.

I hope I helped!

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Answer:

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3 years ago

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Andru [333]

Answer:

<h2>1.16 moles</h2>

Explanation:

To find the number of moles in a substance given it's number of entities we use the formula

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From the question we have

$n = \frac{7 \times {10}^{23} }{6.02 \times {10}^{23} } = \frac{7}{6.02} \\ = 1.162790....$

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<h3>1.16 moles</h3>

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