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1. Concentrated HCl is 36% w/w and has a specific gravity of 1.20. What is the molarity of this reagent? 2. Balance the Redox Rxn:

1. Concentrated HCl is 36% w/w and has a specific gravity of 1.20. What is the molarity of this reagent?

2. Balance the Redox Rxn:

NaClO2 + S --> Cl2 + SO2 + Na2S

a. Does Cl lost or gain electrons, and how many does it lose or gain?

b. What is the oxidizing agent?

c. What is the reducing agent?

d. Why is the reaction hazardous?

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