A Select the correct answer.
In which of these examples does chemical energy change to electrical energy?
A. digesting food
B. photosynthesis
O C. respiration
D. using a battery
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In 1901, thomas edison invented the nickel-iron battery. the following reaction takes place in the battery. fe(s) + 2 nio(oh)(s) + 2 h2o(l) fe(oh)2(s) + 2 ni(oh)2(aq) how many mole of fe(oh)2, is produced when 5.35 mol fe and 7.65 mol nio(oh) react?

How could a student test the effect of removing heat from a gas that is stored in a sealed container? what must occur in order for matter to change states?

Which samples do the atoms have the least kinetic energy