Solution of task 292 of Chemistry Book Shimanovich 2003
If the total amount of your purchases from the seller Михаил_Перович more than:
- 19653 ₽ the discount is 15%
- 9826 ₽ the discount is 10%
- 4913 ₽ the discount is 7%
- 1965 ₽ the discount is 5%
- 983 ₽ the discount is 3%
- 491 ₽ the discount is 2%
- 98 ₽ the discount is 1%
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292. The iron product was coated with lead. Which coating is anodic or cathodic? Why? Compose the electronic equations of the anodic and cathodic processes, corrosion of this product when the coating is broken in moist air and in hydrochloric (hydrochloric) acid. What products of corrosion are formed in the first and second cases?