Question

Определить валентность : H F                                           MgO                                         CO                                         CO2

Answer 1

В HF валентность Н =1, F=1
B MgO валентность Mg =2, O=2
B CO валентность С =2, О=2
В СО2 валентность С =4, О=2

Answer 2

CO- (валентностьC- 4,O-2)
MgO-(Mg-2.O-2)
CO2 не знаю

Answer 3

Valence, or valency, refers to the number of electrons that an atom can either gain or lose in order to form a chemical bond with another atom. It can also refer to the combining power of an element. Here are the valences for the given elements:

• H (hydrogen) has a valence of +1.

• F (fluorine) has a valence of -1.

• Mg (magnesium) has a valence of +2.

• O (oxygen) has a valence of -2.

• C (carbon) has a valence of +/- 4, depending on the specific compound and its bonding arrangement.

• CO (carbon monoxide): Carbon has a valence of +2 in this compound, and oxygen has a valence of -2.

• CO2 (carbon dioxide): Carbon has a valence of +4 in this compound, and each oxygen atom has a valence of -2.

It's important to note that valences can be affected by different factors, including the oxidation state of the element and the specific compound it's part of.