What number and types of atoms occur in a formula unit of Ca(NO3),? Select one:
. 1 calcium atom, 2 neon atoms, and 3 oxygen atoms
. 1 calcium atom, 2 nitrogen atoms, and 6 oxygen atoms
. 1 carbon atom, 1 neon atom, and 6 oxygen atoms
. 1 carbon atom, 1 nitrogen atom, and 3 oxygen atoms​

it forms an anion that has a larger radius. anions have a negative charge and are larger than the original atom.

a. energy is absorbed in the reaction.

if in a given reaction the energy of products is greater than the energy of reactants it means that reaction is endothermic and during the reaction, the energy is absorbed by reactants. in an endothermic reaction, the products have more stored chemical energy than the reactants. and in this reaction the reactants are more stable than products before the compounds with less energy are always more stable.