Na2so4+ hcl =nacl +so2 + h2o A) 2, 2, 2, 1, 2

B) 2, 4, 4, 2, 2

C) 1, 1, 2, 1, 1

D) 1, 2, 2, 1, 1

zfoods? ok, pressure is used to keep the heat inside and to keep the food perfect.

it's c. elements are placed in rows based on how may valencies electrons have.