Describe an electrochemical cell based on this equation:
fe2+ + mg → mg2+ + fe
describe all the parts and the direction of electron flow. identify the cell as either voltaic or electrolytic. write the two balanced half‐reactions.

Titania buys a bag of fertilizers at the store. it reads 30-15-10. how much phosphorous is in the fertilizer a. 30% b. 15% c. 10%

What are the first two quantum numbers for the electrons located in subshell 4d? what are the first three quantum numbers for the electrons located in subshell 2s? how many electrons can be held in a sublevel l = 3? how many electrons can be held in the energy level n = 4? how many electrons in an atom can share the quantum numbers n = 4 and l = 3?

Anthracite is so hard and pure it is also referred to as a renewable resource metamorphic rock hot bituminous coal dirty fuel