What are the half-reactions for a galvanic cell with Zn and Mg electrodes?
A. Zn(s) → Zn2+(aq) + 2e and Mg(s) → Mg2+(aq) + 2e
B. Zn(s) → Zn2+(aq) + 2e and Mg2+(aq) + 2e Mg(s)
O C. Zn2+(aq) + 2e → Zn(s) and Mg2+(aq) + 2e → Mg(s)
D. Zn2+ (aq) + 2e → Zn(s) and Mg(s) → Mg2+(aq) + 2e

Silica, sio2, is formed on silicon as an electrically insulating layer for microelectronic devices. silica is formed when silicon is exposed to o2 gas at an elevated temperature. at 900˚c, it takes 90 minutes for the oxygen to diffuse from the surface to form a 0.06 micron (0.06 x 10-6 m) thick layer of sio2 on

Amap that uses a range of colors and shading to represent the elevation, depth, or landscape of specific features on earth is a/an map.

What is the correct name for the compound cocl3? a) cobalt(i) chloride b) cobalt(i) chlorate c) cobalt(ii) chlorate d) cobalt(iii) chloride