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torisob [31]
3 years ago
12

What causes ice to melt and water to boil

Physics
2 answers:
jekas [21]3 years ago
5 0
Ice melts due to the chemical properties of water. There are more hydrogen bonds between the molecules of ice than in water.

Water boils when the thermal energy in the water, which is a type of kinetic energy which causes the water molecules to move around, exceeds the strength of the hydrogen bonds between the other molecules.
viva [34]3 years ago
3 0


When water is boiled, the heat energy is transferred to the molecules of the water, which begin to move more quickly. Eventually, the molecules have too much energy to stay connected as a liquid. When this occurs, they form gaseous molecules of water vapor, which floats to the surface as bubbles and travels into the air.
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Healthy pregnant women should get at least 150 minutes of moderate-intensity aerobic activity, spread over a 7-day period, each
kirill115 [55]

Healthy pregnant women should get at least 150 minutes of moderate-intensity aerobic activity, spread over a 7-day period, each week - True

<u>Explanation:</u>

Women who are healthy but moderately active must be engaged with aerobic  activities moderately. they should be engaged with this activities at least 2 and a half hours in all 7 days of a week. They must be engaged with this activity during the pregnancy time and also in the period after their delivery.

During the time of pregnancy all women must be healthy and physically active. The ways for maintaining a very good health in the pregnancy time will be guided by the health care providers. Women should be highly active during and after pregnancy time. This helps in having a baby that is also very healthy.

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3 years ago
A block of cheese is pulled on by a string and slides to the right along a rough surface.
Ulleksa [173]

Answer:

Explanation:

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3 years ago
Katie claims that steel is a homogeneous mixture, even though it looks like a
Verizon [17]

Answer:

D. Steel is made of different compounds distributed unevenly.

Explanation:

The statement that will support her claim that steel is a homogenous mixture is that steel is made up of different compounds distributed unevenly.

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8 0
3 years ago
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A football player runs from his own goal line to the opposing team's goal line returning to the fifty yard line all i 18.0s calc
ANTONII [103]
<span>assuming the pitch is 100yards long, the player runs 100yards to the other goal then a further 50 yards back to the 50-yard line. So he/she runs 150yards in 18s
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4 years ago
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Nesterboy [21]

Answer:

The players drops the ball either do to contact, the ball being stripped or personal error

Explanation:

6 0
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