By examining electron domain geometry, one can determine that the ammonia molecule (NH3) has O one sp2 orbital.
two sp’ orbitals.
O three sp orbitals.
O four sp orbitals,

Silver tarnishes as silver metal reacts with hydrogen sulfide, h2s, in the air. in this reaction, dark silver sulfide, au2s, covers the surface of silver. when silver is polished, this coating of silver sulfide can be removed from the surface. this makes the silver shiny again. enter the coefficients that balance the tarnishing reaction equation. (type 1 for no coefficient.)

Which part of earth’s surface receives the most direct rays from the sun? a) equator b) ocean c) poles d) mountains

When electrolyzing copper (ll) chloride, what reaction takes place at the anode? what reaction takes place at the cathode?