Which scenario best describes an object with a displacement of zero?

Select all of the methods through which a drug can enter your body. injection swallowing inhalation absorption

Achemistry student weighs out 0.306 g of citric acid (h3c6h5o7), a triprotic acid, into a 250 ml volumetric flask and dilutes to the mark with distilled water. he plans to titrate the acid with 0.1000 m naoh solution. calculate the volume of naoh solution the student will need to add to reach the final equivalence point. be sure your answer has the correct number of significant digits.

What type of radiation is lead emitting in the following equation? alpha particles beta particles gamma rays