Question

ковалентные неполярные связи характерны для каждого из двух веществ1) кислорода и алмаза2) водорода и метана3) графита и меди 4)кремния цинка

Answer 1

1) Кислорода и алмаза, так как только они из представленных вариантов являются простыми веществами-неметаллами.

Answer 2

Covalent Nonpolar Bonds in Different Substances

1) Oxygen and Diamond: - Both oxygen and diamond are known for forming covalent nonpolar bonds. In the case of oxygen, it forms a diatomic molecule (O2) where the two oxygen atoms share electrons through a double covalent bond, resulting in a nonpolar molecule. Diamond, on the other hand, is composed of carbon atoms, which form strong covalent bonds in a tetrahedral structure, leading to a nonpolar overall structure. - Source: [[1]]

2) Hydrogen and Methane: - Hydrogen and methane also exhibit covalent nonpolar bonds. In the case of hydrogen, it forms a diatomic molecule (H2) through a single covalent bond, resulting in a nonpolar molecule. Methane (CH4) is composed of a central carbon atom bonded to four hydrogen atoms through single covalent bonds, resulting in a nonpolar molecule. - Source: [[2]]

3) Graphite and Copper: - Graphite is composed of carbon atoms arranged in layers, where each carbon atom forms covalent bonds with three other carbon atoms, resulting in a hexagonal lattice structure. These bonds are nonpolar covalent bonds. Copper, on the other hand, is a metal and does not form covalent bonds in the same way as carbon-based substances. Therefore, the comparison of covalent nonpolar bonds between graphite and copper may not be directly applicable. - Source: [[3]]

4) Silicon and Zinc: - Silicon forms covalent nonpolar bonds in its crystalline form, where each silicon atom is bonded to four other silicon atoms in a tetrahedral structure. Zinc, as a metal, does not form covalent bonds in the same manner as silicon. Therefore, the comparison of covalent nonpolar bonds between silicon and zinc may not be directly applicable. - Source: [[4]]

In summary, covalent nonpolar bonds are characteristic of various substances, including oxygen, diamond, hydrogen, methane, and silicon. However, the comparison of covalent nonpolar bonds between certain substances, such as graphite and copper or silicon and zinc, may not be directly applicable due to the different nature of their chemical bonding.