Draw the structures of the 4 isomers of C8H18 that contain 2 methyl branches on separate carbons of the main chain.

Explanation:

1. 2,3-dimethylhexane

2. 2,4-dimethylhexane

3. 2,5-dimethylhexane

4. 3,4-dimethylhexane

Below are the structures of the isomers.

explanation:

crosscutting concepts have application across all domains of science. as such, they are a way of linking the different domains of science. they include patterns; cause and effect; scale, proportion, and quantity; systems and system models; energy and matter; structure and function; and stability and change.

answer: e.   sour taste

explanation: acids are those substances which dissociates in water to give ions. as they dissociate to give ions, they act as electrolytes and thus are electrically conductive. acids are sour in taste. example: hcl

bases are those substances which dissociates in water to give ions or accepts ions. as they dissociate to give ions, they act as electrolytes and thus are electrically conductive. bases are bitter in taste. bases are slippery in nature.