I think it would be penicillin as it saved many lives in its time and ours.
Answer:
Got what wrong? A question?
Answer:
the answer is cobalt and chloride
In the year 1909, Robert A. Millikan and Harvey Fletcher performed the oil drop experiment.
Potassium carbonate<span> (K</span>2CO3<span>) is a white salt, </span>soluble in water<span> (</span>insoluble<span> in ethanol) which forms a strongly alkaline solution. </span>
