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Alex73 [517]
3 years ago
6

Considering the temperature vs. time graph below, how does the temperature at the beginning of a change of state

Chemistry
2 answers:
masya89 [10]3 years ago
8 0

Answer:

The temperature is always lower

Explanation:

Cloud [144]3 years ago
6 0

Answer:

The temperature is always lower.

Explanation:

The temperature is always lower at the end of the state as compared to beginning of the state. We can see in the given data, the temperature is higher at the beginning i. e. 140 degree Celsius but with the passage of time, the temperature of a state decreases constantly  and the temperature at the end is lower i. e. 20 degree Celsius. So we can conclude that the temperature is always lower.

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Lorico [155]
It is B, and also for a moment I didn't understand that 4.69 x 10^22. I almost did this whole problem wrong.
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3 years ago
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Covalent solutes are considered non-electrolytes. What does this mean for the conductivity of the solution? A) Non-electrolytes
iogann1982 [59]

Electrolytes are those which dissociates in solution and produces ions.

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And non electrolytes are those which do not dissociate in solution and doesnt produce ions.

Since non electrolytes do not produce ions they cannot conduct electricity.

<u>Hence the right option is:</u>

B) Non-electrolytes dissolve and do not dissociate in water providing no charged ions to conduct electricity.  

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3 years ago
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When chlorine is added to acetylene, 1, 1, 2, 2-tetrachloroethane is formed: 2cl2 (g) + c2h2 (g) → c2h4cl4 (l) how many liters o
Otrada [13]
Answer:
             20 L of Cl₂

Solution:

The reaction is as follow,

                                   H₂C₂  +  2 Cl₂     →      H₂C₂Cl₄

According to equation,

       167.84 g (1 mole) H₂C₂Cl₄ is produced by  =  44.8 L (2 mole) of Cl₂
So,
                 75 g of H₂C₂Cl₄ will be produced by  =  X L of Cl₂

Solving for X,
                      X  =  (44.8 L × 75 g) ÷ 167.84 g

                      X  =  20 L of Cl₂
7 0
3 years ago
Atoms are the smallest particles of a compound that still retain the properties of that
N76 [4]

Answer:

the answer is true

Explanation:

it is the smallest particle in an element that takes part in a chemical reaction

5 0
2 years ago
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uysha [10]

Answer:

Explanation:

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5 0
3 years ago
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