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Zinaida [17]
2 years ago
8

Even when an object appears to be at rest, its atoms and molecules are in constant motion

Chemistry
1 answer:
natita [175]2 years ago
5 0

Answer:

the answer is True

Explanation:

the answer is True

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The following information is given for benzene, C6H6, at 1atm: boiling point = 80.1 °C Hvap(80.1 °C) = 30.7 kJ/mol specific heat
user100 [1]

<u>Answer:</u> The heat required for the process is 4.24 kJ

<u>Explanation:</u>

To calculate the number of moles, we use the equation:

\text{Number of moles}=\frac{\text{Given mass}}{\text{Molar mass}}

Given mass of benzene = 24.8 g

Molar mass of benzene = 78.11 g/mol

Putting values in above equation, we get:

\text{Moles of benzene}=\frac{24.8g}{78.11g/mol}=0.318mol

To calculate the enthalpy change of the reaction, we use the equation:

\Delta H_{rxn}=\frac{q}{n}

where,

q = amount of heat absorbed = ?

n = number of moles = 0.318 moles

\Delta H_{rxn} = enthalpy change of the reaction  = 30.7 kJ/mol

Putting values in above equation, we get:

30.7kJ/mol=\frac{q}{0.318mol}\\\\q=(30.7kJ/mol\times 0.318mol)=4.24kJ

Hence, the heat required for the process is 4.24 kJ

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3 years ago
During which time interval does the substance exist as both a liquid and a solid
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The Chemistry Regents is one of the four science Regents exams. The other three are Earth Science, Living Environment, and Physics. You'll need to pass at least one of these four exams to graduate high school.
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2 years ago
An estser is the reaction product between: a. Alcohol and organic acid
san4es73 [151]
An ester is the reaction product between A. alcohol and organic acid. 
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3 years ago
Which of the following statements are TRUE for BOTH oxygen and sulfur atoms?
irina1246 [14]

Answer:

b. have the same kind number of complete shells

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Heat is being transferred from the ground to the air above it by conduction. Explain how this is possible.
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Answer:

Conduction directly affects air temperature only a few centimeters into the atmosphere. During the day, sunlight heats the ground, which in turn heats the air directly above it via conduction. At night, the ground cools and the heat flows from the warmer air directly above to the cooler ground via conduction.

Explanation:

4 0
3 years ago
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