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4 years ago

What is the best definition for the underlined word based on the following sentence?

Chemistry

2 answers:

Anon25 [30]4 years ago

7 0

Answer:

B. Happy

Explanation:

"Blithe" is a word that refers to something that is carefree and happy. It describes a heedless attitude about the world, and a lighthearted disposition. Moreover, someone who is "blithe" would be described as someone cheerful, joyous and merry. Therefore, what this text indicates is that although Emily Dickinson did not usually produce cheerful comments or happy outcomes, she is still regarded as one of the most talented poets of the nineteenth century.

svet-max [94.6K]4 years ago

5 0

What is the underlined word

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Calculate the amount of heat needed to melt 91.5g of solid benzene ( C6H6 ) and bring it to a temperature of 60.6°C . Round your

Inessa [10]

Answer: The amount of heat required for melting of benzene is 20.38 kJ

Explanation:

The processes involved in the given problem are:

$1.)C_6H_6(s)(5.5^oC)\rightleftharpoons C_6H_6(l)(5.5^oC)\\2.)C_6H_6(l)(5.5^oC)\rightleftharpoons C_6H_6(l)(60.6^oC)$

For process 1:

To calculate the amount of heat required to melt the benzene at its melting point, we use the equation:

$q_1=m\times \Delta H_{fusion}$

where,

$q_1$ = amount of heat absorbed = ?

m = mass of benzene = 91.5 g

$\Delta H_{fusion}$ = enthalpy change for fusion = 127.40 J/g

Putting all the values in above equation, we get:

$q_1=91.5g\times 127.40J/g=11657.1J$

For process 2:

To calculate the amount of heat absorbed at different temperature, we use the equation:

$q_2=m\times C_{p}\times (T_{2}-T_{1})$

where,

$C_{p}$ = specific heat capacity of benzene = 1.73 J/g°C

m = mass of benzene = 91.5 g

$T_2$ = final temperature = 60.6°C

$T_1$ = initial temperature = 5.5°C

Putting values in above equation, we get:

$q_2=91.5\times 1.73J/g^oC\times (60.6-(5.5))^oC\\\\q_2=8722.05J$

Total heat absorbed = $q_1+q_2$

Total heat absorbed = $[11657.1+8722.05]J=20379.2=20.38kJ$

Hence, the amount of heat required for melting of benzene is 20.38 kJ

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3 years ago

powdered sulfur is yellow and powdered iron is gray when powdered sulfur and powdered iron are mixed at 20° the powdered iron be

quester [9]

Since 20 C is 68 F it would be safe to say that its at room temp. since your are just miking them there chemical properties stay the same and the iron would remain magnetic Hope this helps :)

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4 years ago

Tertiary alkyl halides show SN1 reactions mostly...... Why?

ankoles [38]

Answer:

Generally SN1 reactions are carried out in polar protic solvents. The energy required for breaking the C-X bond is obtained through solvation of halide ion with the proton of the solvent. Tertiary alkyl halides undergo SN1 reaction very fast because of the high stability of tertiary carbocations.

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3 years ago

Dmitri Mendeleev's Periodic Law states that chemical and physical properties repeat themselves in groups of _____. A. 4 B. 8 C.

krok68 [10]

Dmitri Mendeleev's Periodic Law states that chemical and physical properties repeat themselves in groups of 8.

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4 years ago

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Sally is making a model of a magnesium atom with an atomic mass number of 24 for her chemistry class. She has foam balls for the

Rina8888 [55]

The answer is; 6

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3 years ago

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