Why is 4,4dimethyl hexane name is wrong

3,3-dimethyl hexane

Explanation:

                        CH3

         I     I     I     I     I    I

      - C - C - C - C - C - C-

         I     I     I     I     I    I

                        CH3

specific gravity is the density of a substance divided by the density of water. since (at standard temperature and pressure) water has a density of 1 gram/cm3, and since all of the units cancel, specific gravity is usually very close to the same value as density

so "c" is the answer

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cytokinesis is the splitting of a cell membrane to form 2 identical daughter cells. it's similar to mitosis as both cells have identical copies of dna and cytokinesis is a step in the mitotic cycle.