+1 for H, -2 for each O and +7 for Cl
The oxidation state of Cl in HClO4 is +7. In HClO4, since the oxidation state of H is +1 and that of O is -2, the sum of the oxidation states in the compound must equal 0. Therefore, the oxidation state of Cl in this case is +7.
Chlorine has an oxidation number of +7 in perchloric acid (HClO4).
In per chloric acid HClO4, the oxidation number of chlorine is +7.
+5. In oxyacids, oxygen has an oxidation state of -2 and hydrogen an oxidation state of +1. Therefore, the single chlorine atom must have an oxidation state of +5 for the total oxidation states to add to zero.+5. In oxyacids, oxygen has an oxidation state of -2 and hydrogen an oxidation state of +1
Na is +1 because it is a metal, and its charge is its oxidation number O is -2 it is more electronegative than Cl, so it takes the electrons (6-8=-2) Cl is +3 need to make the whole thing neutral (-2*2=-4 -4+1=-3... Cl has to balance it out.)
-1 is most common, but Cl can exhibit oxidation numbers from -1 to +7 in its compounds.
The oxidation number of Cl in potassium chlorate (KClO3) is +5. This is because the oxidation number of K is +1 and the oxidation number of O is -2. By using the sum of the oxidation numbers in the compound, the oxidation number of Cl can be calculated to be +5.
The oxidation number of Cl in NaOCl is +1. This is because Na has an oxidation number of +1 and O has an oxidation number of -2, so the oxidation number of Cl must be +1 in order for the overall charge of NaOCl to be neutral.
The oxidation state of Fe in FeCl3 is +3. Each Cl atom has an oxidation state of -1, and since there are three Cl atoms in FeCl3, the overall charge from the Cl atoms is -3. This makes the Fe atom's oxidation state +3 to balance the charges.
The oxidation number of S in S2Cl2 is +1. Each Cl atom has an oxidation number of -1, and since the molecule is neutral, the overall oxidation numbers of S must balance out to zero. Thus, the oxidation number of S in this compound is +1.
The correct oxidation number for HCl is -1 for Cl and +1 for H.
The oxidation number for Cl in Cl4 is -1. Since Cl is a halogen, it typically has an oxidation number of -1 when it forms compounds.