Question

I need help with chemical reactions

How do they work?

Answer 1

Here's how:

If two substances react and the temperature of the mixture decreases, the reaction is endothermic. If two substances react and the temperature of the mixture increases, the reaction is exothermic. A chemical reaction involves the breaking of bonds in the reactants and the forming of bonds in the product. But In order for the reaction to occur, the reactants need to come into contact with one another. If the temperature changes say, it rises then the frequency of collision between the reactants or molecules increases because their speed increases and the chance of collision increases as well. Some examples of Chemical reactions are Burning coal, wood, paper, etc. Formation of curd from milk. Electrolysis of water to form hydrogen and oxygen. and Rusting of iron. Some exothermic reactions are the thermite reaction. the reaction between water and calcium chloride. the reaction between sodium sulfite and bleach. Some Endothermic reactions are Melting ice cubes. Evaporating water. turning frost into water vapor.

Answer 2

If this answer is not complete nor isn't exactly what you wanted, please clarify your question and we'll take another try.

Answer 3

Is @looollll_kid_ur_bad correct I need help

Answer 4

[AI-generated answer — Explain Bot]

Chemical reactions occur when two or more substances, called reactants, interact with each other and undergo a transformation to form different substances, known as products. The reactants are the starting materials, while the products are the end results of the reaction.

To understand how chemical reactions work, it is important to consider the concept of chemical bonds. Atoms are the building blocks of matter, and they combine with each other through chemical bonds to form molecules. Chemical bonds can be either covalent or ionic.

In a covalent bond, atoms share one or more pairs of electrons to stabilize themselves. These bonds commonly occur between nonmetals. On the other hand, in an ionic bond, one atom transfers electrons to another atom, resulting in charged particles called ions. Ionic bonds usually form between metals and nonmetals.

During a chemical reaction, the existing bonds in the reactants are broken, and new bonds are formed to create the products. Energy is usually required to break the existing bonds, and energy is released when new bonds are formed. This energy exchange is known as the energy change of the reaction.

Chemical reactions can be classified into different types, such as synthesis, decomposition, combustion, displacement, and redox reactions. Each type follows specific patterns and has unique characteristics.

To understand how a specific chemical reaction occurs, it is important to study the reactants and products involved, their atomic or molecular structures, and the conditions under which the reaction takes place. This information can be obtained from scientific literature, textbooks, or online resources.

Equations are used to represent chemical reactions. In a balanced chemical equation, the number of atoms of each element is the same on both sides of the equation, ensuring that the law of conservation of mass is followed.

Experimental observations, theoretical calculations, and computer simulations are often used to study and understand chemical reactions. Scientists employ various techniques, such as spectroscopy and chromatography, to analyze the reaction components and products and determine the reaction mechanisms and kinetics.

Overall, chemical reactions involve the breaking and formation of chemical bonds, resulting in the transformation of reactants into products. Understanding and predicting chemical reactions require knowledge of the reactants, their structures, the reaction conditions, and various scientific approaches to analyze and study them.