2-Sobre os elétrons  A) possuem cargas positivas e massa elevada
B) possuem cargas positivas e massa, praticamente desprezível
C) possuem cargas negativas e massa, praticamente desprezível
D) possuem cargas negativas e massa elevada

3-Sobre os prótons 
A) possuem cargas positivas e massa elevada
B) possuem cargas positivas e massa, praticamente desprezível
C) possuem cargas negativas e massa, praticamente desprezível
D) Possuem cargas negativas e massa elevada

Which of these expressions are correct variations of the combined gas law? p1v1t2 = p2v2t1 both

Which of your 24 wells had indications that a chemical reaction occurred? how were you able to tell that a chemical reaction occurred? which of your 24 wells had indications that a physical reaction occurred? how were you able to tell that a physical reaction occurred? report on both mixing and evaporation. make a general statement about whether your hypotheses were validated or rejected. must your hypotheses be correct for this to be a successful laboratory?

Which diagram represents the phase tha occurs after a solid melts?