How many particles are in a 172 g sample of Cu2O3? A: 5.89 x 1023 particles Cu2O3
B: 5.03 x 1023 particles Cu2O3
C: 5.03 x 1024 particles Cu2O3
D: 5.89 x 1024 particles Cu2O3

100 points answer quick the table compares the number of electrons in two unknown neutral atoms. comparison of electrons atom number of electrons a 10 d 11 use this information to determine the number of valence electrons in the atoms. which of the following correctly compares the stability of the two atoms? both are unreactive. both are highly reactive. a is unreactive and d is reactive. a is reactive and d is unreactive.

What metric units would you use to measure the thickness of a key

Two metal blocks that have slightly different temperatures are placed next to one another. after five minutes, they both have lower but equal temperatures. according to the law of conservation of energy, what  most likelyhappened? energy was created inside the blocks.energy was destroyed inside the blocks.energy was absorbed into the blocks from outside the system.energy was transferred from the warmer block to the cooler block.