What is the solution to the problem rounded to the correct number of significant figures? 8.01 × 4.1 = ?

If a 60-g object has a volume of 30 cm3, what is its density? 2 g/cm3 0.5 cm3/g 1800 g * cm3 none of the above

How has the scientific community addressed the safety of chemicals? a. chemicals are repeatedly tested, even those that have existed for a long time. b. existing chemicals are tested if they have never been tested before. c. chemicals are tested if they are suspected to have caused a problem. d. only new chemicals are tested.

Identify the lewis base in this balanced equation: fe3+ h2o fe(h2o)63+