Which of the following is true about chemical equilibrium systems?

a. they are open systems.
b. the macroscopic properties are not constant.
c. forward and reverse reaction rates are not equal.
d. the concentrations of reactants and products are not always equal.

Which substance has non polar covalent bonds

Most ionic compouds are crystalline solids at room temperature. true falseionic compounds are electrically neutral. true falseionic compounds generally have low melting points. true falsewhen melted, ionic compounds do not conduct electricity. true falsethe electrostatic attraction between an anion and a cation is an ionic bond. true false

Jill is pushing a box across the floor. which represents the upward force perpendicular to the floor? a) fp b) ff c) fn d) fg