chemical reaction

Chemical reaction refers to the process in which molecules break down into atoms, which then rearrange and combine to form new molecules. In the reaction, there are often phenomena such as luminescence, heating, discoloration, and the formation of precipitates. Chemical synthesis is also a way of preparing new materials.

The unit is designed for unsupervised public use: controls are recessed or shielded, moving parts are enclosed, and the interface is operable by a child of about six with no instruction. Where a screen is used, the language can be switched without changing the hardware, and the content can be replaced on site.

(1) Chemical reactions are the process of substance transformation, involving the formation and breaking of chemical bonds between atoms, usually without altering the nuclear structure. The chemical equation describes the reaction process. In chemical symbols, numbers represent the number of atoms or molecules, for example, the "2" in H ₂ O represents a water molecule containing two hydrogen atoms. Chemical reactions are influenced by various conditions, such as temperature, pressure, concentration, etc. (2) Among the 12 elements in this exhibit, select the elements with more active properties and rich chemical reactions in the periodic table, totaling 12: hydrogen, carbon, oxygen, sodium, magnesium, aluminum, sulfur, chlorine, calcium, iron, copper, and zinc. H: Hydrogen (H) is the first element in the periodic table, with an atomic number of 1. It exists in a gaseous state and is the most abundant element in the universe; Na: Sodium (Na) is the 11th element in the periodic table, known for its active chemical properties and+1 oxidation state; Mg: Magnesium (Mg) is listed in the periodic table.