Explain in terms of electronegativity whether the bonds in chifbr (above) are polar or not.

A bond between two atoms is considered to be polar, if the electronegativity difference between the atoms bonded is greater than 0.4

The electro-negativity values of C, H, F, Br and I are,

C = 2.55, H = 2.20, F = 3.98, Br = 2.96, I = 2.66

The electronegativity difference between C and H bond = 2.55 - 2.20 = 0.35

The electronegativity difference between C and F bond = 3.98-2.55 = 1.43

The electronegativity difference between C and Br bond = 2.96 - 2.55 = 0.41

The electronegativity difference between C and I bond = 2.66 - 2.55= 0.11

All the bonds have electro-negativity difference less than or equal to 0.4 except C-Br and C - F bond. So, the C-Br and C-F bond will be polar, and all the other bonds will be non-polar.

why is cellular respiration important for homeostasis?

it changes food into energy that the organism can use.

which of the following is most likely to happen if a cell is not able to divide?

the cell will not be replaced when it is damaged.

explanation:

one negative thing it that it can kill water animals. another negative thing is it can cause the destruction of ecosystem. one way water pollution can be reduced is to conserve energy.