Identify the number of significant figures in each measurement. Type the correct answer in each box. Use numerals instead of words.

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Summarize possible ways in which phases of matter could combine to form a solution.

In the millikan oil drop experiment they determined that every drop had a charge which was a while number multiple of -1.60x10^-19. if a drop has a total charge of -9.60x10^-19 then how many excess electrons are contained within the drop?