Which of these statements is true about chemical reaction rates?
a. the reaction rates cannot decrease
b. the reaction rates cannot increase
c. the reaction rates can change
d. the reaction rates are always constant

C) the reaction rates can change

Explanation:

passing a magnet thought the

mixture , because iron gets attracted to magnet .

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.