How many moles of carbon are in a 28.0g sample

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.

Which atom or ion is the largest? a. k b. k+ c. ca d. ca2+ e. li

In the reaction between a crushed antacid tablet and vinegar what gas is emitted