Cuantos gramos de CaS se necesitan descomponer para obtener 120 gramos de Ca
CaS + calor Ca + S
a) 96 gramos c) 216 gramos
b) 12 gramos d) 24 gramos

1) which of the following is the best example of a physical change? a) sugar dissolving in tea b) firefly glowing 2) in the combustion of ethane, what is/are the reactants? c2h6 + o2 ==> co2 + h2o a) c2h6 and o2 b) co2 and c2h6

How will the volume of a gas be affected if the pressure is tripled, but the temperature remains the same?

Two people each hold the end of a rope and create waves by moving their arms up and down. this wave is best classified as a transverse wave because a) both the rope particles and the wave are moving in the same direction. b) the wave is moving up and down as the particles of the rope move horizontally. c) the wave is moving horizontally as the particles of the rope move up and down. eliminate d) the wave is moving in a parallel direction with the motion of the person's arms.