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Reduce the number 5601.452 to 5 significant figures

Reduce the number 182.582 to 3 significant figures

How many significant figures are in the number 1.250

Reduce the number 75246.22 to 3 significant figures

How many significant figures are in the number 0.0021

How many significant figures are in the number 312.10

How many significant figures are in the number 2100

Which is the correct nuclear symbol for an isotope of chlorine that contains 20 neutrons per atom?

Which substance(s) are ones unlikely to conduct in aqueous solution?  Select all appropriate choices (and note, more than 1 right answer is possible).

Which color in the visible region of the electromagnetic spectrum has the second largest range of wavelength?