Substances A and B are combined. When combined, substance A, which is a black solid, sinks to the bottom of substance B which is a clear liquid. Based on this situation, which of the following is true. A. Substances A and B formed a mixture
B. It is impossible to tell without more information
C. Substances A and B formed a compound
D. Substances A and B formed a new element

a

explanation:

so what is the problem with your lab report and whats the subject of the lab report? i will you

the correct answer is:

a. formation of precipitation

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.