An isotope of cesium has 55 protons and 78 neutrons. what is the mass number of this isotope?

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.

Areaction in which products can react to re-form reactants is

What mass of glucose is produced when 54g of water react with carbon dioxide