Ntwo or more complete sentences explain how to balance the chemical equation and classify its reaction type. + (so4)2 ⟶ +

the balance would be 4nai + pb(so4)2 --> pbi4+ 2na2so4 the type of reaction would be double replacements as bot participates switch initial reactants

indicate valleys, hills, steepness and gentleness of slopes.

explanation:

contour lines on a map indicate elevation, or depth. numeric notations on contour lines refer to the level of elevation, or height about sea level.