Up to a point, the elongation of a spring is directly proportional to the force applied to it. Once you extend the spring more than 10.0 centimeters, however, it no longer follows that simple linear rule. What force will result in stretching the spring 10.0 centimeters?A.1.2 newton
B.2.2 newton
C2.5 newton
D.3.5 newton

Answer:

Explanation: Over pumping refers to pumping fresh water and reducing the level of an underground layer of water. In coastal areas, the lower underground layer of water is infiltrated with salt water, eventually increasing the salinity of the underground layer of water to the point that it is not drinkable. The scarcity of water in the coastal areas because the water in the coastal areas is not drinkable.

Answer:

3,5-dimethyl-2-octene

Explanation:

The parent chain will be choosen based on the highest value. In this case, if we count from top to bottom, we'll get seven carbon, however if we count from the second carbon, going left and then down, we'll get eight carbon. So the parent chain is octene

The double bond is located at the second carbon and the methyl groups are located on carbon 3 & 5. Since there are two methyl groups, we add di- in front of methyl to indicate two methyl groups present.

Note: The functional group has to be prioritise and it needed to be a part of the parent chain. In this case, the functional group is the double bond. (alkene)

Final answer:

The compounds are named as 2-ethyl-4-methylheptene, 3,5-dimethyl-2-octene, 2-ethyl-4-methylheptane and 3-methyl-5-propyl-2-hexene based on the IUPAC nomenclature rules for organic compounds.

Explanation:

The compounds presented in your question are named based on the rules of the International Union of Pure and Applied Chemistry (IUPAC), which are used for organic compounds. Here are their names:

1. 2-ethyl-4-methylheptene - This is a heptene with methyl and ethyl groups on the 2nd and 4th carbon atoms.
2. 3,5-dimethyl-2-octene - This is an octene with two methyl groups on the 3rd and 5th carbon atoms.
3.  
4. 2-ethyl-4-methylheptane - This is a heptane with ethyl and methyl groups on the 2nd and 4th carbon atoms.
5. 3-methyl-5-propyl-2-hexene - This is a hexene with a methyl group on the 3rd carbon atom and a propyl group on the 5th carbon atom.

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