The calculation equation for density is density = mass / volume. So the density for this material is 52.457/13.5=3.886 g/cm3.
Answer keys ? With out that I can't answer it Lol!!
Do you have any options, or is this a write-in?
If it is a write in, the answer is most likely friction, or heat energy.
Gibbs free energy of a reaction (
Δ
G ) is the change in free energy of a system that undergoes the chemical reaction. It is the energy associated with the reaction, which is available to do some useful work. If ΔG<0
, then the reaction can be utilized to do some useful work. If
ΔG>0
, then work has to be done on the system or external energy is required to make the reaction happen. ΔG=0 when the reaction is at equilibrium and there is no net change taking place in the system.
What is the percent by mass of calcium in calcium carbonate, CaCO3? (Molar mass of CaCO3 = 100.09 g/mol)
Answer: 40.04 percent