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AlekseyPX
3 years ago
5

After studying chemical reactions in school, Jen examined some of the different ways people use synthetic materials. She found t

hat there are a variety of ways people use them. What are some of the ways people use these materials and why?
Please help out
Chemistry
2 answers:
Veseljchak [2.6K]3 years ago
8 0
When using a dryer to dry your clothes your clothes become synthetic after drying clothes
dlinn [17]3 years ago
5 0
What he said lskfbekkfnsjkfkdjjfjfjkdjf
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The heat of vaporization for water is 40. 7 kJ/mol. How much heat energy must 150. 0 g of water absorb to boil away completely?
netineya [11]

The heat absorbed by the water sample for vaporization has been 6,105 kJ. Thus, option D is correct.

The heat of vaporization has been the amount of heat required to vaporize 1 gram of liquid.

The heat required for the vaporization has been given as:

Q=m\Delta H_{vap}

<h3 /><h3>Computation for the Heat of vaporization</h3>

The heat of vaporization of water has been given as, \Delta H_{vap}=40.7\;\rm kJ/mol

The mass of water sample has been, m=150\;\rm g

Substituting the values for the heat energy absorbed, <em>Q:</em>

<em />

<em />Q=150\;\times\;40.7\;\rm kJ\\&#10;\textit Q=6,105\;kJ

The heat absorbed by the water sample for vaporization has been 6,105 kJ. Thus, option D is correct.

Learn more about heat of vaporization, here:

brainly.com/question/2427061

3 0
3 years ago
How long would it take a radio wave with a frequency of 6.50 ✕ 108 Hz to travel from Mars to Earth if the distance between the t
olga55 [171]
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4 0
3 years ago
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What volume of 1.75 M hydrochloric acid (HCl aq) must be diluted with water to prepare 0.500 L of 0.250 M hydrochloric acid?
Airida [17]

Answer:

V_1=0.0714L

Explanation:

Hello there!

In this case, since we need to dilute the 1.75-M HCl, and the total number of moles remain unchanged, we can write:

n_1=n_2

And in terms of volume and concentration:

C_1V_1=C_2V_2

Thus, we can solve for the volume of the concentrated HCl as shown below:

V_1=\frac{C_2V_2}{C_1}

Therefore, we plug in the data to get:

V_1=\frac{0.250M*0.500L}{1.75 M}\\\\V_1=0.0714L

Best regards!

7 0
3 years ago
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Convection currents are caused by the movement of the magma in the mantle.

Hope This Helps You!
Good Luck Studying :)
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