Write the balanced COMPLETE ionic equation for the reaction when ammonium carbonate and calcium chloride are mixed in aqueous solution. If no reaction occurs, simply write only NR.

What rule is used to determine how many covalent bonds an element can form? a. the number of covalent bonds is equal to six c the number of covalent bonds is equal to five minus the group number plus the group number b. the number of covalent bonds is equal to eight d. none of the above minus the group number select the best answer from the choices provided

Which scenario is most similar to the type of collision that gas particles have according to kinetic molecular theory

Why is the bottom layer of a trophic pyrimid the