Ob] the electrodes of a fuel cellare in contact with water and all
the electrodes are made of platinum rather than iron.
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state why iron is not a suitable metal for the electrodes of the cell.

Inside a flashbulb, oxygen surrounds a thin coil of magnesium. when the flashbulb is set off, a chemical reaction takes place in which magnesium combines with oxygen to form magnesium oxide. which of the chemical equations matches the reaction above? a. mg + o2 mgo2 + energy b. 2mg + o mg2o + energy c. 2mg + o2 2mgo + energy d. mg + o mgo + energy

No copying 15 pts how does a free-body diagram tell you about the net force on an object?

Ab c or d ? i’m not sure what the answer is