Leon made a chart to summarize some characteristics of led light bulbs. which headings best complete the chart? x: cost-effectiveness y: time-effectiveness x: time-effectiveness y: cost-effectiveness x: benefits y: risks x: risks y: benefits

Why is soap used to remove grease? a. its nonpolar end dissolves the grease. b. it makes the water bond with the grease. c. it chemically bonds with the grease. d. its polar end dissolves the grease.correct answer for apex - a, its nonpolar end dissolves the grease.

To find the enthalpy of a reaction in the lab, you measured the of the reactants and the change during the reaction.

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