Which of the following chemicals is an example of a perovskite that would be used in a perovskite solar cell? answer options: a. CaPbN3 b. CaPbO3 c. KPbO2 d. LiPbN3

Using data from seismic waves, geologists have learned that earth’s interior is made up of several

Draw the skeletal structures of two different molecules that are each made of 5 carbon atoms and 12 hydrogen atoms.

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.