Match the following vocabulary
part a
1. the change from a liquid state to a gaseous state
2. the change from a gaseous state to a liquid state
3. the change from a solid state to a liquid state
4. the change from a liquid state to a solid
5. the change from a solid state to a gaseous state
6. the change from a gaseous state to so solid
7. a change of state
part b
a. boiling
b. deposition
c. phase change
d. sublimation
e. condensation
f. melting
g. freezing

1. The change from a liquid state to a gaseous state = a. boiling

2. The change from a gaseous state to a liquid state = e. condensation

3. The change from a solid state to a liquid state = f. melting

4. The change from a liquid state to a solid = g. freezing

5. The change from a solid state to a gaseous state = d. sublimation

6. The change from a gaseous state to so solid = b. deposition

7. A change of state = c. phase change

Explanation:

State changes

The balance between attractive and repulsive forces between the particles that make up a substance determines that the substance is in one state or another.

By conveniently modifying the pressure and temperature, a substance can be obtained from one state of aggregation to another.

Fusion: is the passage of a substance from the solid state to the liquid state. The reverse process, that is, the passage of a substance from the liquid state to the solid state is called Solidification.

Vaporization: is the passage of a substance from the liquid state to the gas state. This can occur in two possible ways: evaporation and boiling.

Evaporation: it is a slow vaporization that occurs only on the surface free of liquids and at any temperature. Example: in a puddle at room temperature.

The boil: is a tumultuous vaporization that is carried out throughout the mass of the liquid. For a given pressure, each liquid has a boiling temperature.

The reverse process, that is, the passage of a substance from the gas state to the liquid state is called Liquification or condensation. Energy detachment is performed by heat.

Sublimation: is the passage of a substance from the solid state to the gas state. The reverse process, that is, the passage of a substance from the gas state to the solid state is called regressive sublimation.

2fe + 3h2so4 -> fe2(so4)3 + 3h2

it is necessary to balance equations in order to get the proper amount of reactants as well as products in order not to make a miscalculation.

you cannot change the subscripts as that would change the substance itself. for instance, diatomic elements such as h2 only have the subscript two when a gas. another example would be so4, if you were to change the subscript, the element would no longer be sulfate.

we change the coefficients instead as that only changes the number of molecules rather than the substance itself.

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