Water is made up of two elements, hydrogen and oxygen. How many hydrogen atoms are there in one molecule of water? A. One B. Two C. Three D. Four 相关知识点: 试题来源: 解析 B。解析:一个水分子的化学式是H₂O,这表示一个水分子由两个氢原子和一个氧原子组成,所以答案是B。A选项一...
One interesting question is whether there are more atoms in a drop of water than there are drops of water in the ocean. To determine the answer, we need the volume of water in the oceans. Sources estimate this to be between 1.3 billion km3and 1.5 km3. I'll use the USGS (United Sta...
For many years, scientists couldn’t figure out how atoms and molecules combined to make living things. Plants, fish, dinosaurs, and people are made of atoms and molecules, but they are put together in a more complicated way than the molecules in the primitive ocean. What’s more, living ...
2. How many electrons do atoms of each of the following have in their outer shell选择语言:从 到 翻译结果1翻译结果2 翻译结果3翻译结果4翻译结果5 翻译结果1复制译文编辑译文朗读译文返回顶部 2。以下的每个原子在其外壳有多少个电子 翻译结果2复制译文编辑译文朗读译文返回顶部 2. 多少个电子做原子每一...
For many years, scientists couldn't figure out how atoms and molecules on the Earth combined to make living things. Plants, fish, dinosaurs, and people are made of atoms and molecules, but they are put together in a more complicated way than the molecule
Each water molecule forms mobile hydrogen bonds with the 18-crown-6 molecule; i.e., the O atom of the water molecule is localized above the ligand cavity, whereas the two H atoms were found to coordinate nonlocally to two of the three O atoms lying on each side of the ligand. In ...
How many moles of water, H2O, contain 2.0 x 10^22 molecules of water? How many moles of water contain 2.0 x 10^22 molecules of water? How many moles of H_2O are in 430 g of H_2O? How many atoms are in 1 mole of water? A 27-gram sample of water, H2O, is how many moles...
a出口巴西里约热内卢州 Exporta o estado Brazilian de Rio de Janeiro[translate] ahow many oxygen or hydrogen atoms are there in each molecule of your acid or base when it is dissolved in water 多少氧气或氢原子是那里在您的酸或基地每个分子,当它在水中被溶化[translate]...
How Many Water Bottles Are in a Gallon? Storing Bottled Water Behind the Labels Bottled Water Regulations Under-regulation and Misconception Ecological Effects How Many Water Bottles Are in a Gallon? There are a little less than eight bottles in one gallon of water. Bottle sizes vary bet...
How many moles are in 11.3 grams of {eq}H_2 {/eq}? Molecular Compounds: Water is an example of a molecular compound that exists in terms of discrete molecules. A water molecule contains non-metal atoms known as H and O. These elements are combined by covalent bonds. ...