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Burka [1]
3 years ago
6

A student lives in a place that receives lots of snow and ice during the winter. The student has observed that the highway depar

tment spreads salt on the road after a snowfall. Which of the following correctly explains why the highway department uses salt on the roads?
Salt lowers the freezing point of water, which makes the melted snow on the road less likely to form ice.

Salt raises the freezing point of water, which makes the melted snow on the road less likely to form ice.

Salt raises the vapor pressure of water, which makes the melted snow more likely to evaporate before it freezes.

Salt lowers the osmotic pressure of water, which makes the melted snow more likely to be absorbed into the ground before it freezes.
Chemistry
2 answers:
trapecia [35]3 years ago
7 0

Answer:

Salt lowers the freezing point of water, which makes the melted snow on the road less likely to form ice.

Annette [7]3 years ago
7 0

Answer:

A

Explanation:

Edge.

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pentagon [3]
Melting points and boiling points of molecular compound are usually lower than ionic compounds. This is so as only a small amount of energy is required to overcome the weak intermolecular forces of attraction (Van de Waals forces) thus having lower m.p. and b.p.

Ionic compounds require a large amount of energy to overcome the strong electrostatic forces of attraction between the ions, hence having higher mp and bp
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3 years ago
Differentiate between elements and mixtures
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Answer:

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3 0
2 years ago
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Answer:

D.  because water and mud behaved in a similar way in the past as they do today

Explanation:

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6 0
3 years ago
Please help fast
Maslowich

Energy added  = mass*specific heat* rise in temperature.

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=  50*4.18

= 209 J (answer).

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