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frutty [35]
3 years ago
10

Which is the weight, on earth, of a book with the mass of 1.5 kg?

Chemistry
1 answer:
Alisiya [41]3 years ago
6 0

weight=mass x gravitational field strength

hence weight of book=1.5x9.81

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given two equations representing reactions: which type of reaction is represented by each of these equations?
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Answer:

Equation 1 - nuclear fission

Equation 2 - nuclear fusion

Explanation:

Nuclear fission is a reaction in which a large nucleus is split into smaller nuclei when it is bombarded by neutrons. The process produces more neutrons to continue the chain reaction. This is clearly depicted in equation 1 as shown in the question.

Nuclear fusion is a reaction in which two light nuclei combine in order to form a larger nuclei. This is clearly depicted in equation 2 as shown in the question.

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4 0
3 years ago
15. The mass of a sample of iron is 114 g, and the density of iron is 7.86 g/cm3. What is the volume of this iron sample?
anyanavicka [17]

Answer:

The answer is

<h2>14.50 cm³</h2>

Explanation:

The volume of a substance when given the density and mass can be found by using the formula

volume =  \frac{mass}{density}

From the question

mass of iron = 114 g

density = 7.86 g/cm³

The volume is

volume =  \frac{114}{7.86}  \\  = 14.50381679

We have the final answer as

<h3>14.50 cm³</h3>

Hope this helps you

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nasty-shy [4]

Answer:

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Explanation:

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lisabon 2012 [21]
It’s really any metal because metals form metallic bonds. They are the only substances which can make metallic bonds. So the answer is A
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