If an atom gains an electron and gets a negative charge because of it, it is a negatively charge ion AKA an anion.
Answer:
The correct answer is A)
Overtime, the finches on the island adapted as a result of competition for resources.
Explanation:
The finches beaks adapted to the food source which was favored by natural selection. The successful finches that had the most useful beak for their island survived and therefore reproduced.
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Answer:
The answer to your question is:
Explanation:
1 . homogeneous a substance maintaining a uniform appearance throughout 2 . miscible the ability of liquids to be mixed together
3 . immiscible two liquids that will not mix with one another
4 . heterogeneous a mixture consisting of visibly different substances or phases
<u>Answer:</u> The correct answer is Option A.
<u>Explanation:</u>
Standard enthalpy of formation is the change in enthalpy of one mole of a substance present at the standard state that is 1 atm of pressure and 298 K of temperature. The substance is formed from its pure elements under the same conditions.
We are given a chemical compound having chemical formula 
This compound is formed by the combination of calcium, nitrogen and oxygen elements.
The chemical equation for the formation of
from the components in their standard states follows:

Hence, the correct answer is Option A.