Which balanced equation represents a chemical change?
(1) h2o(l) + energy → h2o(g)
(2) 2h2o(l) + energy → 2h2(g) + o2(g)
(3) h2o(l) → h2o(s) + energy
(4) h2o(g) → h2o(l) + energy

It is important to wear proper protective equipment in lab even when not actively performing experiments because accidents can affect any researcher, even one not working on an experiment. select the best answer from the choices provided

(apex) when a cup of water is dropped, as the cup falls, the water in the cup falls out true or false?

Describing intermolecular forces use the drop down menus to match the type of intermolecular force to its name dipole dipole interactions dipole induced dipole interactions london dispersion forces hydrogen bond van der waals forces done