27.3 x 54.48 = (Round to the correct number of significant figures)
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Which statement best explains the relationship between an area is geography and the temperature of its surface water

What is a possible quantum number set for an electron in the 3s orbital of a magnesium atom

Determine the ph of 0.10 m nh3 solution. nh3 is a weak base with a kb equal to 1.8 x 10-5 round answer to nearest whole number.