Which of the following best explain how earth's rotation affects direction of sunrise?

as the earth rotates, it causes the sun to appear as if it is rising from the east.
the earth's rotation provides sunlight first in one side of the planet.
the rotation of earth causes sunlight to move from east to west.
the orbital path of earth around the sun affects the direction of sunrise.

Harvey mixes two liquids. which observation of the new mixture most likely indicates a precipitate is forming?

Achemistry student needs to standardize a fresh solution of sodium hydroxide. he carefully weighs out of oxalic acid , a diprotic acid that can be purchased inexpensively in high purity, and dissolves it in of distilled water. the student then titrates the oxalic acid solution with his sodium hydroxide solution. when the titration reaches the equivalence point, the student finds he has used of sodium hydroxide solution.calculate the molarity of the student's sodium hydroxide solution. be sure your answer has the correct number of significant digits.

When water dissolves sugar, which process is not involved? o dissociation o hydration o surface area of the solute increases sa