Hi :) how to test if a solution is neutral?

Which type of stress results when two plates push against one another? a. compression b. tension c. force d. shear

An unknown insoluble substance displaced the water shown. it's mass is indicated on the triple beam balance. mass = a. 694 b. 693.5 c. 693.0 d.693.8

What do many bases have in common? apex chemistry sem 2