Ca + 2HNO₃ =Ca(NO3)2 + H₂ How many atoms of calcium are participating
in the above reaction to produce 0.5 mores
of calciunt nitrate ?​

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.

At 300 mm hg, a gas has a volume of 380 l, what is the volume at standard pressure

Why do cells appear different in distilled water than they do in 10% salt water?