How many particles are present in one mole of particles? a) 12 b) 1 c) 3.0 x 108 d) 6.02 x 1023

This chart represents the melting point of several substance. what besy explains the high melting point of the salt?

How many moles of al3+ ions are in 1.25 moles of al2o3

16. why must the number of electrons lost equal the number of electrons gained in every redox reaction? use 3 – 4 sentences in your own words to address this question. 18. what type of radiation is emitted when chromium-51 decays into manganese-51? show the nuclear equation that leads you to this answer. 19. a radioactive nucleus alpha decays to yield a sodium-24 nucleus in 14.8 hours. what was the identity of the original nucleus? show the nuclear equation that leads you to this answer.