Sebastian wants to write the chemical formula for phosphorus tetraoxide. which steps will he take at some point in his process? check all that apply. identify the elements involved as potassium and oxygen identify the symbols as p and o write the chemical symbols, in order, as op use the prefix tetra before oxygen add a subscript of 4 after the o

Explanation:

A chemical formula is defined as symbolic representation of a molecule or compound.

The number present as a subscript in a chemical formula depicts the number of atoms of each element present in the compound.

For example, chemical formula of phosphorous tetraoxide is .

The symbol P represents the element phosphorous and symbol O represents the element oxygen.

Since, 4 atoms of oxygen are involved. Therefore, a prefix "tetra" is mentioned. And, a suffix "-ide" is placed at the end of oxygen and it will be written as an oxide.

This means that tetra is placed before oxide and not before the word oxygen.

Thus, we can conclude that steps taken by Sebastian at some point in his process are as follows.

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  the   balanced   equation   for   reaction of   ca metal   with   o2 to   produce   cao   is as below

2 ca+ o2→ 2 cao2

  explanation

the reaction is   balanced     since the   number of atoms   in reactant side is   equal to   number of atoms   in   product side.   for   example   they   are 2   atom of   ca in   reactant   side   and   2   atoms of ca   in   the product side.

  the   process   is a   meet the   requirement   of   redox   reaction because :     calcium   is   oxidized   from   oxidation state 0   to 2+   while   oxygen   is reduced from   oxidation   state   0   to 2-