Which is true about a 5 kg weight resting on the edge of a shelf?

Select one

It has no energy because it is just sitting there.

It will have no potential energy after it falls once a force is applied to push it off the shelf

It has kinetic energy because a force it to the shelf

It has energy because a force lifted it to the shelt:

Hbr dissociates to form h+ and br-ca(oh)2 dissociates to form ca2+ and 2oh-the h+ and oh- react to form waterassuming the reactants are dissolved in water, the net reaction is h+ + oh- —> h2oif you’re asked to show all components of the reaction, the complete reaction is 2hbr + ca(oh)2 —> cabr2 + 2h2o

Hello thereone of the following properties was originally used to arrange elements on the periodic table, but is no longer used to organize the modern version. which property fits this description? answer: atomic mass  was originally used to arrange elements on the periodic table, but is no longer used to organize the modern version.