The oxidation number of all metals on the periodic table have a positive (+) charge. which of these best explains why? a) metals are known to add protons to their nuclei causing them to become positively charged. b) all metals lose one or more valence electrons to become stable, giving them a positive oxidation number. c) all metals gain one or more valence electrons to become stable, giving them a positive oxidation number. d) metals are known to lose protons and add neutrons to their nuclei causing them to become positively charged.

How much heat is released upon converting one mole of steam (18.0 g) from 100.0 ∘c to water at 25.0 ∘c? show work and constants, trying to figure out how it works. only given the heat capacity for steam and water so try to only use that

List four observations that indicate that a chemical reaction may be taking place

The table compares the number of electrons in two unknown neutral atoms. comparison of electrons atom number of electrons a 9 d 11 use this information to determine the number of valence electrons in the atoms. which of the following correctly compares the stability of tthe table compares the number of electrons in two unknown neutral atoms. comparison of electrons atom number of electrons a 9 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.