百度试题 结果1 题目37 How many atoms are there in one molecule of ethanoic acid? A 5 B 6 C 8 D 11 相关知识点: 试题来源: 解析 C 反馈 收藏
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]...
A chemical unit is the smallest unit of a substance which shows all the chemical nature of the substance. Chemical units of elements are called molecules. The number of atoms in a molecule depends on the element. At room temperature, some elements are gases (in a gas, there are larger ...
How many atoms are there in a 0.289-mole sample of sulfur? Chemical Formula: The chemical formula is the formula of a compound in which: We can see which atoms for a certain molecule. Also, we can determine the number of each atom. ...
Atoms are a bit like people: they usually prefer company to being alone. A lot of atoms prefer to join up with other atoms because they're more stable that way. So hydrogen atoms don't exist by themselves: instead, they pair up to make what is called a molecule of hydrogen. A molecu...
This fact concerns both simple systems, such as atoms composed of a nucleus and electrons or (macro)molecules composed of atoms, as well as very ... B Korzeniewski - 《Open Journal of Philosophy》 被引量: 0发表: 2015年 Besides N(2), What Is the Most Stable Molecule Composed Only of...
Circle the Stereogenic centers. How many possible stereoisomers does each molecule have? How many asymmetric carbons are there in the following molecule? [{Image src='rection4272265438049989988.jpg' alt='reaction' caption=''}] How many chiral carbon atoms are present in a molecule of gl...
aFirst, the hydrogen atoms in the water molecule are distributed asymmetrically, causing the water molecule to have a positive side and a negative side: it is said to be polar. 首先,在水分子分布得氢原子不对称地,造成水分子有正面边和消极边: 它被认为极性。 [translate] ...
(nitrogen number two) of another, along a peptide or protein chain. A covalent bond, also called a molecular bond, is a chemical bond that involves the sharing of electron pairs between atoms. Ionic bonding is the complete transfer of valence...
How many atoms are in a sample of 68.7 grams of copper? How many grams are there in 1.30 x 10^24 atoms of silver? How many atoms are in 15.00 grams of P? Express your answer in scientific notation. How many atoms does a molecule of CO2 have?