You must read the next experiment and then answer these questions. Complete the

Question

You must read the next experiment and then answer these questions. Complete the following statements: A compound that contains a metal ion and a nonmetal ion is an compound. Name one metal that can form more than one ion: Most polyatomic ions contain oxygen and one other The sum of the charges in a compound must add up to The name of this polyatomic ion, SO_3^2- is Which comes first, the cation or the anion? Name this compound: SO_3 Is this compound an ionic or covalent compound? What is the difference between F_2 and F or Na and Na ?

Explanation / Answer

a) ionic

b) Iron

it can form Fe+2 and Fe+3

c) metal atom

d) zero

e) sulphite

g) cation

while writing

the cation is written first followed by anion

2)

this compound is called sulfur trioxide

this is a covalent compound , as both S and O are non metals

3)

F2 is simple element

F- is an ion . in this case anion

Na is simple element

Na+ is cation

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