A model aids in visualizing a molecule and understanding its properties.
In chemistry, models of molecules give us an idea about the arrangement of atoms in the molecules. Usually, the arrangement of atoms in a molecules determines the kind of reactions that the molecule can undergo.
Models are three dimensional representations of what molecules look like. They help us to conceptualize the possible orientation of atoms and groups in the molecule.
Looking at the model of H2SO4, it becomes easier to understand the chemical and physical properties of the compound owing to the arrangement of atoms.
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Answer: A, they fit closely together with each plate surrounding it
Explanation:
Plates meet at the edge of other plates called fault lines.
They do not all move in the same direction at the same speed, if this were the case there would be no collisions and no earthquakes or mountains as a result.
They are not separated by the ocean. This still has the earth's crust underneath it, it's just further down. Otherwise magma would be at the ocean floor.
They do not move DUE TO earthquakes and lava, however, they are the reason that these are created as they both happen due to separation or collision of plates.
By increasing the size of cells
The arrow that are drawn correctly are the cool air current and the upper air current. In the sea breeze, warm air moves up because it is less dense that the cool air. The cool air moves down to replace the warm air. The land breeze current moves from the land to the sea while the sea breeze moves from the sea to the land. This creates a continuous flow of current at the sea level.
The answer to your equation is c