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Reika [66]
3 years ago
5

Which factors are needed to determine the amount of heat absorbed by an aluminum cube after it is warmed?

Chemistry
1 answer:
xxMikexx [17]3 years ago
3 0

Answer:

final temperature of the cube

initial temperature of the cube

mass of the cube

specific heat of aluminum

Explanation:

Let me know if you need any other help:)

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How many molecules of ethanol (c2h5oh) (the alcohol in alcoholic beverages) are present in 140 ml of ethanol? the density of eth
Bond [772]
An mL is also equivalent to cm³, signifying that 140 mL is equivalent to 140 cm³. The mass of ethanol is calculated by multiplying the density by the volume.

              mass = (140 cm³)(0.789 g/cm³)
                   mass = 110.46 g

Then, calculate the number of moles of ethanol by dividing the mass by the molar mass of ethanol equal to 46.07 g/mol.
               number of moles = (110.46 g/ 46.07 g/mol) = 2.4 mol

Then, multiply the number of moles by the Avogadro's number.
                    2.4 mol (6.022 x 10²³)
           <em>      number of molecules = 1.445 x 10²⁴</em>
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3 years ago
Gaseous methane will react with gaseous oxygen to produce gaseous carbon dioxide and gaseous water . Suppose 9.3 g of methane is
Marrrta [24]

Answer:

26 g

Explanation:

Write the balanced reaction first

CH4 + 2 O2 --> CO2 + 2 H2O

9.3g + 52.3g --> ? CO2

You must determine how much carbon dioxide can be made from each of the reactants. The maximum mass that can be made is the lower of the two.

From CH4:

9.3g CH4 (1molCH4/16.05gCH4) (1molCO2 / 1molCH4) (44.01g CH4 / 1molCO2) = 26 g

From O2:

52.3g O2 (1molO2/32gO2) (1molCO2/2molO2)(44.01g/1molCO2) = 36 g

6 0
3 years ago
What is elimination reaction​
Gala2k [10]
It’s in the link below to help u
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2 years ago
How many mols are present in 5.24 x 1024 atoms of Carbon tetra fluoride?
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Answer: 5.44×10226.022140857(74)×1023⋅mol−1.

Explanation: So the answer is approx. 0.10⋅mol

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2 years ago
How many atoms are in c8h8o3?<br> Show your work
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Answer:

im positive that it's 19

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2 years ago
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