Answer:
Explanation:
Solids are divided into two main categories, crystalline solids and amorphous solids, based on how the particles are arranged.
Crystalline solids, or crystals, are regarded as "true solids." Minerals are crystalline solids. Common table salt is one example of this kind of solid. In crystalline solids, the atoms, ions or molecules are arranged in an ordered and symmetrical pattern that is repeated over the entire crystal.
Crystalline solids also exhibit anisotropy. This means that properties such as refractive index (how much light bends when passing through the substance), conductivity (how well it conducts electricity) and tensile strength (the force required to break it apart) will vary depending on the direction from which a force is applied. Crystalline solids also exhibit cleavage; when broken apart, the pieces will have planed surfaces, or straight edges.
There are four types of crystalline solids: ionic solids, molecular solids, network covalent solids and metallic solids.
In amorphous solids (literally "solids without form"), the particles do not have a repeating lattice pattern. They are also called "pseudo solids." Examples of amorphous solids include glass, rubber, gels and most plastics. An amorphous solid does not have a definite melting point; instead, it melts gradually over a range of temperatures, because the bonds do not break all at once. This means an amorphous solid will melt into a soft, malleable state (think candle wax or molten glass) before turning completely into a liquid.
Amorphous solids have no characteristic symmetry, so they do not have regular planes of cleavage when cut; the edges may be curved. They are called isotropic because properties such as refractive index, conductivity and tensile strength are equal regardless of the direction in which a force is applied.
exposition, because the summary describes the story’s characters
Answer:
Here ya go
Explanation:
If it were not for my sister, I wouldn't have been able to do it at all. ... As I know this is so often not the case, I wanted to take the time and thank her and all the ... and say over and over again, “I'm not helping you enough, should I fly in? ... Tell them often how grateful you are and how much their trust makes it ...
Answer:
The Birds flew south to their winter home.
Explanation:
When you study basic English Grammar one of the first topics is the personal pronouns:
I ( Singular)
You ( Singular or plural)
He ( Singular)
She ( Singular)
It ( Singular)
We (Plural)
They (Plural)
The Pronoun The birds must be substituted by They flew south.....
The misplaced modifier creates confusion because the sentence is written as if the person wishes to be happy at the fountain. The correct sentence would have been At the fountain, I wished for happiness.Hope this helps!:)
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