NOTE: Students may only attempt the Chemistry Placement Test once. Please note the PRE - or CO-REQUISITE for CH EM131: Assessment levels: ENGL101/READ120; MATH093 or MATH096 or appropriate score on the mathematics placement test. The Chemistry Place ment Test is available on a walk-in basis at all three Campus Assessment Centers. Jerry walked from home to school then from the school to the park. what is his total displacement_