freezing water
melting ice
deposition of CO2 (changing from a gas to solid)
Among the choices given, the best answer is the third option. Melting ice shows an increase in entropy. Entropy is the degree of disorderliness in a system. Among the phases, solid has the most ordered structure which means it has the least entropy. The ice melting shows a phase change from solid to liquid. Liquid molecules are more disorganized than the solid thus there is an increase in entropy.
Answer: melting ice
Explanation:
Entropy is the measure of randomness or disorder of a system. If a system moves from an ordered arrangement to a disordered arrangement, the entropy is said to decrease and vice versa.
1. condensation of water : Condensation process is a process where gaseous state changes to liquid state., thus decreasing randomness and decreasing entropy.
2. Freezing water : Freezing process is a process where liquid state changes to solid state, thus decreasing randomness and decreasing entropy.
3. melting ice: Fusion process is a process where solid state changes to liquid state, thus increasing randomness and increasing entropy.
4. deposition of : deposition process where gaseous state changes to solid state by escaping liquid state, thus decreasing randomness and decreasing entropy.
red
black
white
platelets
round
Answer:
answers:
1.b
2.d
3.b
4. c
5.c
6.d
7.c
Explanation:
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19. place moth balls in the closet and observe after several days.
20. whenever wax or a candle burns it turns from solid to liquid but again at room temperature it turns to solid
21. evaporation, condensation, precipitation
22. it produces new substances
23. vinegar Bubbles when baking soda is added.
24. steam
A white solid is flammable and dissolves in hexane. It should be organic molecule.
Any chemical substance that has carbon-hydrogen, as well as carbon-carbon bonds is considered an organic molecule.
The term "flammable substances" refers to those gases, liquids, as well as solids that, when exposed to an ignition source, would catch fire and keep burning in the air. Many flammable and explosive substances have a volatile character, which means they rapidly evaporate and continuously emit vapors.
A chemical characteristic, like corrosion resistance, was flammability. A material's physical characteristics, including its hardness, density, melting point, and thermal conductivity, can be measured or observed without using force or chemical alterations. A material's phase changes when it melts, not just its identity.
There are some properties of organic molecules.
To know more about organic molecule
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