In each of the following reactions, determine what elements were oxidized and which were reduced:
36)
Ca + H2O > CaO + H2
Element oxidized:
Element reduced:
37)
2 H2 + O2 → 2 H2O
Element oxidized:
Element reduced:
38)
2 Na + FeCl2 → 2 NaCl + Fe
Element oxidized:
Element reduced:

there are no statements provided but here is why:

sulfur belongs to group 16 because it can be found in nature whether it is in a free or combined state.

hope this

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!

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~ trueboss72

it forms an anion that has a larger radius. anions have a negative charge and are larger than the original atom.