How is this reaction classified? 2Cao + H2O → Ca (OH)2 + Heat

A. Endothermic

B. Exothermic

C. Decomposition​

Acetic acid, hc2h3o2, dissolves and completely dissociates in water and a solvation sphere of water molecules forms around the ions. this solute-solvent interaction

The diagrams show objects’ gravitational pull toward each other. which statement describes the relationship between diagram x and y? gravity attracts only larger objects toward one another. gravity attracts larger objects only if they are close to one another. if the masses of the objects increase, then the force between them also increases. if distance between the objects increases, then the amount of force also increases.

What are the first three quantum numbers for the electrons located in subshell 2s?