Elizabeth were studying the history of cell theory and the contributions of different scientist she made this table to compare two of the scientist which part of scientists and Elizabeth right instead of X and Y

Achemistry student weighs out of phosphoric acid , a triprotic acid, into a volumetric flask and dilutes to the mark with distilled water. he plans to titrate the acid with solution. calculate the volume of solution the student will need to add to reach the final equivalence point. round your answer to significant digits.

Which position represents spring in the southern hemisphere? a) b) c) d)

Achemist has dissolved a certain substance in water. the chemist knows that more of the substance could be dissolved into the water before it stops dissolving. therefore