Why is chemistry flexible a. it is biased b. it cannot be verified c. it adds new evidence d. it cannot be reproduced

C, it adds new evidence. Chemistry, 99.99% of the time, can be verified and reproduced if the evidence is correct. Having bias doesn't add flexibility, it adds unnecessary rigidity and sometimes ignorance. When new evidence is introduced to a theory or proposition, it changes, or flexes, people's minds, and eventually after being reproduced many times and verified, changes the fundamental past assumptions about said theory or proposition.

each chemical family is represented as a group or column on the periodic table. based on chemical properties, there are 6 types of chemical families. group 1 represents alkali metals, group 2 represents alkaline earth metals, groups 3 to 12 represent transition metals, groups 13 to 16 represent non-metals and other metals, group 17 represents halogens and group 18 represents noble gases.

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.