Consider this reaction: KOH + HBr - KBr + H2O
Which is the base in this reaction?
КОН
HBr
KBr
H2O
DONE

KOH

Explanation:

KOH + HBr - --> KBr + H2O

base    acid

answer:

the answer is 6 valence electrons.

explanation:

valence is the # of electrons on the outer most shell of an atom.

oxygen has 6.

although, the valency of oxygen is 2, because it only needs to make 2 covalent bonds, or gain 2 electrons, to achieve the stable octet configuration of a noble gas.

that's it!

if you need further assistance, let me know: )

~ trueboss72

1. a)c-14 has two more protons

2. d)they have different numbers of protons, neutrons, and valence electrons; they are all gases at room temperature.

3. c) iron and nickel.