Which of the following will be a precipitate (a solid) in a double displacement reaction?
Select one:
a. (NH4)2S
b. PbCl2
c. Na, C03
d. K2SO4

As you watch a surfer ride a wave towards the shoreline, what is the shoreline? a) displacement reference b) reference point c) coordinate plane d) cartesian boundary

What produces wave a)sound b) heats c)transfer of energy d)vibrations

16. in a reaction that has reached equilibrium, a. the forward and reverse reactions are occurring at the same rate. b. the reactants and products are in equal concentrations. c. the forward reaction has gone further than the reverse reaction. d. there are equal numbers of atoms on both sides of the equation. e. a, b, and d are correct.