What is one of the most important compounds of oxygen? A. Hydrogen (H₂) B. Water (H₂O) C. Carbon monoxide (CO) D. Nitrogen (N₂) 相关知识点: 试题来源: 解析 B。原因:文章中明确提到“One of the most important compounds of oxygen is water (H₂O).”。 反馈 收藏 ...
Therefore, any metal which is below hydrogen on the 'activity series' won't react because the metal refuses to be oxidized by the hydrogen atom alone. If you look at the relative strengths of acids, you'll see that nitric acid (HNO3) is actually 'weaker' than HCl is, however nitric a...
hydrogen. Hydrogen and carbon can burn in the presence of heat and oxygen to form carbon dioxide and water in a reaction called combustion. As with all these properties, there are exceptions to the rule, for instance, covalent bonds that do not have carbon or hydrogen in their make up do...
What kind of bonds hold the phosphate group of one nucleotide to the 3' carbon of another nucleotide's sugar molecule? a. Ionic b. Covalent c. Hydrogen d. Hydroxyl List two cellular molecules that are proteins. Which pair of compounds can be classified as inorganic? (a) Nucleic acids...
Describe the atoms that can participate in hydrogen bonding. Which of the following compounds will form hydrogen bonds with water? (a) CH_3CH_2OCH_2OH (b) CH_3CH_2CH_2F (c) CH_3CH_2CH_2NHCH_3 (d) CH_3CH_2CH_2COOH (e) CH_3CH_2N(CH_3)_2. ...
Compounds: Compounds are very common in everyday life. One of the most important compounds for human life is water. Water consists of two atoms of hydrogen bonded with one atom of oxygen. Some compounds are more valuable and useful than others. ...
Describe compounds and the concept of chemical bonding. Will the compound H2S experience hydrogen bonding? Explain. Describe the effect that non-bonding electron pairs might have on the molecular geometry. Use water as the example. Briefly describe the type of bond: Polar-co...
hydrogen atoms that are all covalently bonded to one another. Each hydrogen atom shares one electron with the carbon atom. Methane (CH4), water (H2O), carbon chloride (CCl4), ammonia (NH3) and countless other covalent compounds are considered both molecules and compounds, since they only rely...
B-N compounds have been shown to be particularly promising materials for this application. Ammonia-borane (AB, NH3-BH3), for example, is 19.6 % hydrogen by weight, contains three E-H bonds per main group element, and the presence of both protic N-H and hydridic B-H hydrogens allows ...
Covalent bonds.Bonding occurs when two nonmetal atoms share pairs of electrons to form a stable bond. Examples of covalent compounds include water, carbon dioxide (CO2) and hydrogen chloride (HCl). Ionic bonds.Bonding occurs when a metal atom and a nonmetal atom exchange valence electrons to for...