Which of the following is an unbalanced equation? A. CaCO3 --> CaO + CO2
B. PbO2 + 2H2-->2Pb + H2O
C. CS2 + 2O2 --> CO2 + 2SO2

Fill in the coefficients that will balance the following reaction: a0cr2(so4)3 + a1agno3 -> a2cr(no3)3 + a3ag2so4

Clyde and marilyn are riding a roller coaster. during which section(s) of the track is their potential energy converted to kinetic energy? a. from point b to point c only b. from point b to point d only c. from point a to point b only d. from point a to point b and from point c to point d

Which metals are called noble metals