What charge does oxygen have? What is the number of protons in hydrogen? What is the symbol for hydrogen ion? How many electrons are in a hydrogen ion? What charge do nonmetals have? What is a hydrogen bond? What can hydrogen bond with?
Which type of bond must be broken for water to vaporize? a) Ionic bonds b) Polar covalent bonds c) hydrogen bonds d) both polar covalent bonds and hydrogen bonds.What type of bond is formed by the attraction between partially charged regions of ...
解析 A核心短语/词汇:help sb./ sth. (to) do sth. 帮助某人/某物做某事句子译文:氧气是唯一的助燃气体吗? 本题考查定语从句。___helps fire burn 用来修饰之前的名词gas, 该从句的引导词在定语从句中做主语,不能省略,先行词有only 修饰时不能用which; what 不能引导定语从句,故选项A符合题意。反馈...
Describe hydrogen bonding as it occurs in water in terms of the location of the bond, the particles involved, the strength of the bond, and the effects this type of bonding has on physical properties. Define hydrogen bond. What is hydrogen bonding? Give some examples. W...
What is renewable hydrogen? Renewable hydrogen is hydrogen derived from water. It’s created using a process called electrolysis, wherein electricity from renewable sources is used to split the hydrogen molecules from the oxygen molecules in water. Because the electricity used here comes from renewabl...
and the other end with the two hydrogen atoms has a positive charge. The negatively charged oxygen atom of one molecule attracts one of the positively charged hydrogen atoms of another molecule, forming a dipole-dipole hydrogen bond. This bond is weaker than the covalent molecular bond, but it...
Oxygen is necessary for animals to breathe and produce energy. Without air, animals cannot survive. 氧气是动物呼吸和产生能量所必需的。没有空气,动物无法生存。 Space 空间 Animals need enough space to move, hunt, and interact with oth...
Chemical Bond:The smallest representative unit of a single chemical element is an atom. Atoms of different elements can form a lasting attraction known as a chemical bond. If this is an ionic bond, then the atoms have net opposite charges, so there is an electros...
How are hydrogen bonds and cohesion connected? What causes hydrogen bonding? What property of water is due to hydrogen bonds? What kind of bond is carbon and hydrogen? How is a hydrogen bond different from a covalent bond? What type of bond does hydrogen and oxygen form?
have a slightly different electronegativity. The carbon-oxygen bond is a polar covalent bond. It is still a covalent bond, but the electrons aren't shared equally between the atoms. If you are given a test question asking which type of bond carbon forms, the answer is a covalent bond. ...