What is the oxidation number of Cr in K2Cr2O7?
Understand the Problem
The question is asking for the oxidation number of chromium (Cr) in the compound potassium dichromate (K2Cr2O7). To solve this, we will assess the oxidation states of the other elements in the compound and then determine the oxidation state of chromium based on the overall charge balance.
Answer
+6
The final answer is +6
Answer for screen readers
The final answer is +6
More Information
Chromium in potassium dichromate (K2Cr2O7) has an oxidation state of +6. This is calculated by balancing the overall charge of the compound considering potassium has a +1 oxidation state and oxygen a -2 oxidation state.
Tips
Avoid mixing up the oxidation states of the different elements and ensure the correct stoichiometry when balancing the equation.
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