Question

Определите валентность элементов в следующих соединениях: MoO3, MnO2, Al2S3, LiH, MgO, P2O5.

Answer 1

Объяснение:

Mo(VI)O(II)

Mn(IV)O(II)

Al(III)S(II)

Li(I)H(I)

Mg(II)O(II)

P(V)O(II)

Answer 2

Valence of Elements in the Given Compounds

The valence of an element refers to the number of electrons an atom of that element can gain, lose, or share when it forms chemical compounds. Here is the valence of each element in the given compounds:

1. MoO3 (Molybdenum trioxide): - Molybdenum (Mo) is a transition metal and can have multiple valence states. In this compound, molybdenum has a valence of +6. - Oxygen (O) is a nonmetal and typically has a valence of -2.

2. MnO2 (Manganese dioxide): - Manganese (Mn) is also a transition metal and can have different valence states. In this compound, manganese has a valence of +4. - Oxygen (O) has a valence of -2.

3. Al2S3 (Aluminum sulfide): - Aluminum (Al) is a metal and has a valence of +3. - Sulfur (S) is a nonmetal and typically has a valence of -2.

4. LiH (Lithium hydride): - Lithium (Li) is an alkali metal and has a valence of +1. - Hydrogen (H) is a nonmetal and typically has a valence of -1.

5. MgO (Magnesium oxide): - Magnesium (Mg) is an alkaline earth metal and has a valence of +2. - Oxygen (O) has a valence of -2.

6. P2O5 (Diphosphorus pentoxide): - Phosphorus (P) is a nonmetal and can have multiple valence states. In this compound, phosphorus has a valence of +5. - Oxygen (O) has a valence of -2.

Please note that the valence of elements can vary depending on the specific compound they are part of. The valence values mentioned above are specific to the given compounds.

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