Which factors will affect the rate of the following reaction? zn (s) + 2hcl (aq) → zncl₂ (s) + h₂ (g).

Two technicians are discussing how to test a car's exhaust by holding a small piece of paper within an inch of the tailpipe mouth. technician a says that if the paper is vibrating due to a "puffing" output from the tailpipe, this signals a smoothly running engine. technician b says that if the paper is being drawn toward the tailpipe, this could indicate burned exhaust valves. who is correct? a. technician b b. both technicians a and b c. technician a d. neither technicians a or b

Mount saint helen the great lakes and death valley are physical features of the earth which scientific term describes these features

According to the passage weisers mother could be blamed for