367 Cal to kilowatt-hours, how to convert?

In this chemical reaction, 325 grams of barium (ba) react completely. how many moles of lithium (li) are produced?

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 diagram shows the correct way to represent an ionic compound of magnesium oxide?