The following half-reactions are joined to form a galvanic cell that generates a current under standard conditions. Identify what is oxidized and what is reduced. Write a shorthand cell diagram, and calculate the standard cell potential (E°).
2 H+(aq) + 2 e- → H2(g) and Ni2+(aq) + 2 e- → Ni(s)

The famous scientist galileo galilei did several experiments with sloping planes, which he rolled metal balls down so that he could study motion. by changing the slope, he could study how the speed at which the ball rolled was affected. what was the independent variable in galileo's experiment? a. the speed of the ball b. the slope of the plane c. whether the ball moved d. what the ball was made of

Why do oxygen have a strong attractive force for electrons

What properties would have caused early researchers to name hydrogen "inflammable air”