How many significant figures will be in the final answer of this calculation? 20.2 + 3.10 - 0.09687 = a.2 b.3 c.4 d.5 e. none of the above?

Consider the following system at equilibrium. caco3(s) ca2+(aq) + co32–(aq) the addition of which compound will cause a shift in equilibrium because of a common ion effect? ccl4 co2 cuso4 na2co3

37.0 °c = °f (human body normal temperature)

Which substance—wood or silver—is the better thermal conductor? a thermal conductor is a material that requires very little heat energy to change its temperature. explain your answer.