When you convert from particles to moles you will A. divide by Avogadro's constant
B. divide by molar mass
C. multiply by Avogadro's constant
D. multiply by molar mass​

it's c. elements are placed in rows based on how may valencies electrons have.

a saline water is fed to a reverse osmosis unit at flow rate o rotameter connected to reject (retentate) line reads 8 installed in reject and permeate line reads 15.2 milli siemens/cm and 300 micro siemens/com respectively.

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.