a gas expands from a volume of 4.65 L to 6.21 L under a constant external pressure of 2.33 atm. How much work is done on the gas in joules?

The number to the right of an element's symbol (ex. c-12) identifies the of an isotope.

As we move from left to right across the periodic table, what is the general trend? a) atomic radii increase. b) electronegavitiy decreases. c) nuclear shielding increases. d) metallic character decreases.

What is the equation fort the alkaline zinc/manganese dioxide cell. a) anode b)cathode c)overall equations.