A solution containing HCl would likely have a high pH and a low pOH.
a low pH and a high pOH.
a high pH and a high poH.
a low pH and a low pOH

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).

1. a)c-14 has two more protons

2. d)they have different numbers of protons, neutrons, and valence electrons; they are all gases at room temperature.

3. c) iron and nickel.