根据句意“一个水分子是由两个氢原子和一个氧原子组成的”,“由...组成”可译为bemadeupof,也可译为consistof,consistof 不用于被动语态,根据原句中的is可知应用一般现在时态,主语A moleculeofwater是单数形式,故谓语动词应用第三人称单数形式,故填consistsof。 反馈 ...
A water molecule (分子) is made up of 2 hydrogen atoms and l oxygen atom. It can be changed only by aspecial way of controlling of the atoms. The material made into the cup can have nanometer particles. But it cannot change the chemical and physical properties of the water contained in...
Journal of Physical Chemistry AWhat is an atom in a molecule - Parr, Ayers, et al.R.G. Parr, P.W. Ayers, R.F. Nalewajski, What is an atom in a molecule?, J Phys. Chem. A 109 (2005) 3957-3959.Parr, RG, Ayers, PW, Nalewajski, RF (2005) What is an atom in a ...
A molecule's molecular weight is the sum of all its constituent atoms' atomic weights. Avogadro's number (6.02214076 × 1023) is the number of molecules that constitutes the atomic weight of a molecule in grams (g). For example, water is two hydrogen atoms with a weight of 1 g each an...
Water is a polar molecule because the electronegativity of oxygen is higher than that of hydrogen, meaning that the electron density is shifted towards the oxygen atom in the molecule. Water is a polar molecule because its oxygen is strongly electronegative and, as such, pulls the electron pair...
of an atom,while we learnt in P08 Curious glow that the electrons are found in different energy levels about an atom.Determine whether a water molecule is overall positively charged,neutral or negatively charged by considering the total number of protons and electrons found in a water molecule. ...
The humblewater moleculeis made up of two hydrogen atoms bonded to an oxygen atom. "The way they're bonded together makes water this wonderful universal solvent," meaning that almost every substance can dissolve in water, Glazer told Live Science. ...
They were eager tothe world and the only one in China, specializing in researching thelearn about the constructioninvestigation of the application of nano technology into medicine.of the city.A water molecule(分子) is composed of 2 hydrogen atoms and 1oxygen atom. It can be changed only by ...
Water is amphoteric, meaning it can act as both an acid and a base. It is a good source of hydrogen, as electropositive elements can reduce water to a hydrogen molecule that is useful in redox reactions. Water has highersurface tensioncompared to most liquids (one of the excepti...
Most plants split water molecules to generate energy, and now we have a clearer picture of exactly how they do it.