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omeli [17]
4 years ago
5

How many moles are present in 2.45E23 moles of carbon tetrahydride

Chemistry
1 answer:
givi [52]4 years ago
6 0

Answer:

carbon Philips because ADHD dug in CVC lives me so did dicl. xhbc

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At what temperature will a solid melt ?
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A solid will start to melt when it reaches its melting point. For example the melting point of Helium is -272° Celsius and the melting point of Carbon is 3500° Celsius . Helium has the lowest melting point and carbon has the highest melting point in the periodic table.

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How much energy (in J) is lost when a sample of iron with a mass of 26.4 g cools from 74.0 ∘C to 26.0 ∘C?
Greeley [361]

Answer:

Q=-526.6J

Explanation:

Hello,

In this case, for the computation of the energy loss when the cooling process is carried out, we use the shown below equation:

Q=mCp\Delta T

Whereas we need the mass, specific heat and change in temperature of iron within the process. Thus, the only value we need is the specific heat that is 0.444 J/(g°C), therefore, we compute the heat loss:

Q=26.4g*0.444\frac{J}{g\°C}*(26.0\°C-74.0\°C)\\ \\Q=-526.6J

Negative sign points out the loss due to the cooling.

Regards.

8 0
4 years ago
How might a renewable energy source become non-renewable???
poizon [28]

if it is used continuously

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4 years ago
Identify the type of reaction shown by this chemical equation:<br>2AI + 6HCI - 2AlCl3 + 3H2​
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Answer:

Single displacement reaction

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2AI + 6HCI —> 2AlCl3 + 3H2

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3 years ago
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