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

i believe the answer is a.

the mantle

explanation:

earth is divided into three layers: the crust or the outermost layer on which we live; the underlying, middle layer - the mantle - and the core (the innermost layer of earth).