Is water a mixture? For the society explained from the point of view of molecules, atoms .

Water is a pure substance, and first of all, a mixture is a mixture of multiple substances [from a variety of pure substances (elemental substances or compounds)]. The mixture does not have a chemical formula. There is no fixed composition and properties, and each element or compound retains its original properties.

In the mixture, a variety of substances contained in it do not react with each other and still maintain the original chemical properties. Whereas, water is made up of water molecules and contains only one compound, H2Oand cannot be separated.

Pure water is pure and contains only one molecule, H2O

Pure water is not a mixture. Pure water is a hydroxide compound composed of one oxygen atom and two hydrogen atoms. It exists in nature in three states: solid, liquid, and gaseous, and its essence remains unchanged.

A mixture is a mixture of a variety of substances (elemental or compoundy) that are pure. There is only one molecule in water – H2O. So it's not a mixture.

1.First of all, water can be divided into oxygen and hydrogen, which is a chemical reaction, which is the decomposition of water into two substances under the condition of electricity, namely.

H2O = energized = H2 + O2

2.And the water molecules come from.

In terms of composition, each H2O is composed of 2 H and 1 O, which are seen from the chemical formula.

Another example: each H2 molecule is composed of two H atoms, H2SO4 is the sulfuric acid molecule, and each sulfuric acid molecule is composed of 2 H atoms, 1 S atom, and 4 O atomsFrom the perspective of ionization, water itself is a weak electrolyte (high school chemistry compulsory 1 has been taught) H2O reversible symbol.

oh-+h+ (- and + are both ionic symbols and are written in the upper right corner).

That is to say, water can be ionized, that is, water molecules will spontaneously ionize into hydrogen ions and hydroxide ions, which can be known from the fact that water can conduct electricity.

H2O This is the molecular formula of water, that is, the chemical formula, which is composed of two hydrogen atoms and one oxygen atom, which can also be said to be, composed of hydrogen and oxygen!

A water molecule contains two different elements; Hydrogen and oxygen. A water molecule is made up of two hydrogen atoms and one oxygen atom.

A water molecule is made up of 2 hydrogen atoms and an oxygen atom.

Chemical properties are properties of substances that are only exhibited in chemical reactions.

Water molecules.

Hydrogen atoms and oxygen atoms are covalently bonded together as covalent compounds and are difficult to ionize. So it's made up of molecules.

It is composed of two hydrogen atoms and one oxygen atom.

The properties that matter exhibit when it undergoes a chemical change are called chemical properties.

Two hydrogen atoms and one oxygen atom.

Chemical properties are the properties that manifest substances in chemical changes.

Compound.

A pure substance (as distinguished from an elemental substance) in which a compound consists of two or more elements. A compound has certain properties, both from the elements or ions it contains, and from other compounds, and often with a certain composition.

Water (chemical formula: HO) is an inorganic substance composed of two elements, hydrogen and oxygen, and is non-toxic. It is a colorless and odorless transparent liquid at room temperature and pressure, and is known as the source of human life.

Water, including natural water (rivers, lakes, atmospheric water, seawater, groundwater, etc.), distilled water is pure water, artificial water (water obtained by combining hydrogen and oxygen atoms through chemical reactions). Water is one of the most common substances on the earth, an important resource for the survival of all life, including inorganic chemistry, and the most important component of living organisms. Water has played an important role in the evolution of life.

It is a narrowly non-renewable, broadly defined renewable resource.

Pure water can conduct electricity, but it is very weak (conductivity is negligible in daily life) and is a very weak electrolyte. Water in daily life has more positive and negative ions due to the dissolution of other electrolytes, and the conductivity is enhanced.

Water is a compound composed of the elements hydrogen and oxygen

A compound composed of two elements, H and O.

Some substances are soluble in water, and their molecules (or atoms) combine with water molecules to form hydrated molecules, such as C2H5OH·H2O, NH3·H2O, etc.

Because the structure of various substances is different, the way they combine with water is also different, and the molecules of some substances form hydrogen bonds with water molecules to form hydrated molecules, such as the above-mentioned C2H5OH·H2O and NH3·H2O. There are also some substances such as the atoms of noble gases and smaller gas molecules such as Cl2 and SO2 when dissolved in water, which can be combined with water to form a substance called a cage, which is also a kind of hydration, and they can also be regarded as a hydration molecule.

The hydration process is usually an exothermic process. However, when the matter is dissolved, the particles of the solute have to overcome their own mutual attraction to leave the solute, and this process requires the consumption of energy, so when the substance dissolves, it absorbs heat. Water and process are chemical reactions, while the latter are physical reactions.

a. Water is a substance composed of molecules, so water molecules can maintain the chemical properties of water Correct b. In the electrolysis of water experiment, the gas obtained from the negative electrode of the power supply is hydrogen, and hydrogen can be burned in the air to produce water Correct c. Alum can purify water because when alum is dissolved in water, it produces a gelatinous substance, which adsorbs impurities suspended in water and settles the impurities from the water Correct D. Filtration can remove impurities that are insoluble in water, but cannot remove impurities that dissolve in water False Therefore, D

There are three types of particles that make up matter: molecules, atoms, or ions;

Water is made up of water molecules.

1 water molecule (H2O) is made up of two hydrogen atoms (H) and one oxygen atom (O).

Water is made up of water molecules, and a water molecule is made up of two hydrogen atoms and one oxygen atom.