Reproduce the chemical equation for the above snippet: so3 + = na2so4 + h2o; + h2o = ba (oh) 2; sio2 + = casio3; cro3 + = h2cro4; + feo = feso4 + h2o: hbr + = cabr2 + h2o

Describe the interaction that occurs between two objects with the same electrical charge.

Light waves can move through , but they travel fastest when they move through a(n) .

Match the term to its description match term definition chemical energy a) internal energy caused by vibrations of atoms and molecules electrical energy b) electromagnetic energy that travels in waves radiant energy c) the movement of an electrical charge thermal energy d) potential energy stored in the bonds between atoms