What are chemical properties????

Chemical properties are the properties of substances that exhibit in chemical changes. For example, the chemical properties of the substance category: acidic, alkaline, oxidizing, reducible, thermal stability and some other properties.

Hint: Chemical properties and chemical change are two different concepts, property is the property of matter, is the internal cause of change, and property determines change; The change is the specific manifestation of the property, and the chemical property can only be revealed in the chemical change. For example, alcohol is flammable, so when you ignite it, the chemical change of alcohol combustion can occur; Whereas the flammability (chemical properties) of alcohol is a conclusion drawn through the phenomenon of countless alcohol burns.

Since it is a chemistry subject, physical properties are often ignored in the learning process, but in fact, physical properties are also very important for the learning of chemistry. Chemical identification, separation, purification, inference, and selection of gas production and gas collection devices all require reference to the physical properties of the substance. Therefore, students should pay enough attention to their studies.

Physical properties are properties that can be exhibited by substances without chemical changes, such as color, state, odor, density, melting point, boiling point, hardness, solubility, ductility, electrical conductivity, thermal conductivity, etc., which can be sensed or measured by instruments.

Chemical properties refer to the properties of substances that are exhibited when they undergo chemical changes. Such as: flammability, stability, acidity, alkaline, oxidation, reduction, etc., corrosiveness, etc.

What are the chemical properties of iron.

Chemistry is a kind of natural science, which studies the composition, properties, structure and change laws of matter at the molecular and atomic levels. The science of creating new matter.

The world is composed of matter, and chemistry is one of the main methods and means used by human beings to understand and transform the material world. It is a discipline with a long history and vitality, and its achievements are an important symbol of social civilization.

Subjects of study in chemistry:

Chemistry plays an important role in our understanding and use of matter. The universe is composed of matter, chemistry is one of the main methods and means for human beings to understand and transform the material world, it is a discipline with a long history and vitality, and the relationship between human progress and social development is very close, and its achievements are an important symbol of social civilization.

From primitive societies that began to use fire, to modern societies that use various man-made substances, humans have enjoyed the fruits of chemistry. Human life can be continuously improved and improved, and the contribution of chemistry plays an important role in this.

Such as flammability, instability, acidity, alkaline, oxidation, reduction, and the phenomenon of reacting with certain substances. The chemical properties of the substance can be known by the method of chemical reaction of the substance. For example, heating KCLO3 to melt can rekindle the sparkled wood strips, indicating that KCLO3 is able to release dust and acorn O2 when heated to higher temperatures

Therefore, KCLO3 has the chemical property of thermal decomposition to produce O2.

It should be noted that the difference between chemical change and chemical properties is that candle burning is a chemical change; The phenomenon that a candle presents when it burns is its chemical properties. The chemical properties of a substance are determined by its structure, which in turn can be reflected by its chemical properties. The use of a substance is determined by its nature.

Chemical properties are characterized by the fact that after the properties of the substance are measured, the original substance disappears. For example, people can use the method of combustion to measure whether the substance is flammable, and the method of heating to see whether it decomposes can measure the stability of the substance. The oxidation, reduction, and universality of various substances exhibited by substances in chemical reactions are all chemical properties.