In the disproportionation reaction ci2 + h2omc021-1.jpghcio + hci, what describes the oxidation states of the substance cl? cl has an oxidation number of 2 in cl2. it is then reduced to cl with an oxidation number of 1 in both hcl and hclo. cl has an oxidation number of –1 in cl2. it is then oxidized to cl with an oxidation number of 1 in both hcl and hclo. cl has an oxidation number of 0 in cl2. it is then reduced to ci- with an oxidation number of –1 in both hcl and hclo. cl has an oxidation number of 0 in cl2. it is then reduced to ci- with an oxidation number of –1 in hcl and is oxidized to cl+ with an oxidation number +1 in hclo

Reaction: CI2 + H2O    >  HCIO + HCI

Oxidations states:

The oxitation state of Cl2 = 0, because the oxidation state of an atom alone or a molucule with one kind of atom is always 0.

The oxidation state of Cl in HClO is +1 because the oxidation state of H is + 1, the oxidation state of O is - 2, and the molecule is neutral, so  +1 + 1 - 2 = 0

The oxidation state of Cl in HCl is - 1, because the oxidation state of H is +1 and the molecule is neutral, so - 1 + 1 = 0.

Also, you shall remember that when an atom increases its oxidation state is is oxidized and when an atoms reduces its oxidations state it is reduced.

With that you conclude that the right option is the last statement: Cl has an oxidation number of 0 in Cl2. It is then reduced to CI- with an oxidation number of –1 in HCl and is oxidized to Cl+ with an oxidation number +1 in HClO

1. and 2. question: in which equation? or i don't understand you, 3. a), 4. c), 5. c), 6. b), 7. d), 8. d) if small number is underlined(behind symbol) , b) if big number is underlined(in front of symbol)9. what is underlined there? 10. c)

Aphysical change is one that you can put in and remove like a ham sandwich. the stuff you put in there can be changem its not permanet. a chemical change is on that can't be change thats permanet. like when you make a cake and bake it. you can't get those ingredients back.