# data[].attributes.body
1. the change in its enthalpy resulting from providing energy
2. typically heat, to a specific quantity of the substance to change its state from a solid to a liquid
3.during melting the heat energy needed to change the substance from solid to liquid at atmospheric pressure is latent heat of fusion
4.When the heat of fusion is referenced to a unit of mass, it is usually called the specific heat of fusion

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1.`endothermic reactions are in the minority—most chemical reactions release energy.
2. An endothermic reaction usually needs some energy to get it going.
3.The explosion of an endothermic substance is in itself exothermic,
4. the chemical potential energy of the compound being released in the form of heat, light, and sound.
5.An exothermic reaction is a chemical reaction that releases energy by light or heat.
6.An exothermic reaction is a chemical reaction that releases heat.
7. It gives net energy to its surroundings.
8.When the medium in which the reaction is taking place gains heat, the reaction is exothermic.

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1. v1/t1=v2/t2
2. When the pressure on a sample of a dry gas is held constant, the Kelvin temperature and the volume will be in direct proportion.
3.This law describes how a gas expands as the temperature increases
4.The equation shows that, as absolute temperature increases, the volume of the gas also increases in proportion.

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1. Boyle's law states that the pressure of a given mass of a ideal gas is inversely proportional to its volume
2. This means that as pressure increases, the volume of a gas at constant temperature decreases.
3. t1v1=t2v2
4.the amount of space the gas takes up the less pressure there will be

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gas to liquid
1. when you blow on glass
2.when you bring a cold drink out into the sun
3.dew on the ground in the morning
4.

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liquid to solid
1.when stuff reaches its freezing point
2. like when water gets cold enough it makes ice
3.this happens in the winter if you leave water in a out door pool.
4.

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solid to gas
1.when you mix dry ice and water together
2.camphor which is used in India as a air freshener.
3.moth ball which is a solid ball that spread gases around one area to keep moths away
4.

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liquid to gas
1.when boiling water
2.when water outside gets heated up.
3.sweating is our body evaporating
4.

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1. created by adding energy and gas so its molecules separate.
2.99% of viable is believed to be plasma.
3.plasma is usually hot
4. star are made up of plasma

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1. doesn't have a definite volume or shape
2.helium
3. exon
4.neon

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gas to solid
1.water vapor to ice
2.physical vapors to film
3.when the air is so cold it makes the stuff around have a layer of ice around it.

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1. The combined gas law makes use of the relationships shared by pressure, volume, and temperature.
2. PV / T = k shows how pressure, volume and temperature relate to each other, where k is a constant number.
3.The formula for the combined gas law can be adjusted to compare two sets of conditions in one substance.
4. The combined gas law is a gas law that combines Charles's law, Boyle's law, and gay-Lussac's law

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1.liquid has a definite volume but not a definite shape.
2.water
3.pop
4.milk

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1.an object keeps the same amount of energy unless you gain or lose speed.
2.kinetic energy can go in any direction
3.the faster the object moves the more kinetic energy it has.
4.

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1.has a definite volume and shape.
2.television
3. house
4.mountains

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solid to liquid
1.when an ice cube get heated up
2.in spring the snow get heated up and melts
3.when your ice cream is eaten fast enough
4.