Question

Как рассчитывать степень окисления ????

Answer 1

Нужно опираться на таблицу мендилеева...возьмём Al  у него степень окисления +3 потому,что он стоит в 3 группе таблицы

Answer 2

Calculating Oxidation States

To calculate the oxidation state of an element in a compound, you can follow these steps:

1. Assign Known Oxidation States: Start by assigning known oxidation states to the elements in the compound based on common rules and knowledge of typical oxidation states for specific elements.

2. Use Rules and Guidelines: Apply rules and guidelines to determine the oxidation state of the unknown element. For example, in a compound like Ca(HCO3)3, you can use the following guidelines: - The oxidation state of Ca is typically +2. - The sum of the oxidation states in a neutral compound is zero. - The oxidation state of hydrogen in most of its compounds is +1. - The oxidation state of oxygen in most of its compounds is -2.

3. Apply Math and Logic: Use mathematical and logical reasoning to determine the oxidation state of the unknown element based on the known oxidation states and the overall charge of the compound.

4. Consider Special Cases: Be aware of special cases and exceptions, such as transition metals that can exhibit multiple oxidation states. For example, Fe can have an oxidation state of +2 or +3.

By following these steps and considering the specific rules and guidelines for assigning oxidation states, you can accurately calculate the oxidation state of elements in compounds.