Chemistry, the science of matter and its transformations is a fascinating subject that underlies many aspects of our daily lives. Online chemistry classes offer a convenient and flexible way to learn the fundamentals of chemistry, preparing students for careers in various fields like medicine, materials science and environmental science etc. In this post, we will explore the basic chemical concepts taught as you consider to take my online class cheap, providing a comprehensive overview for those new to the subject or seeking a refresher.
WHAT IS CHEMISTRY?
Chemistry is the branch of science concerned with the substances of which matter is composed; the investigation of their properties and reactions, and the use of such reactions to form new substances.
CHEMICAL CONCEPTS COVERED IN ONLINE CLASSES:
Online Learning has become a crucial part of our lives getting a massive boost in the coronavirus period. This is the the ratio to do my online class cheap has risen to huge numbers. However, the truth is to gain knowledge and understanding we should take online classes ourselves. Now let us go through the basic chemical concepts taught in online chemistry classes.
1) ATOMIC STRUCTURE:
Atomic structure means the structure of an atom. The structure of an atom comprises three different particles, known as protons, neutrons, and electrons.
Protons:
Protons are positively charged particles found inside the nucleus of an atom. They help to identify the atom.
Neutrons:
Neutrons are found in the nucleus of the atom. They have no charge and contribute to the atomic mass.
Electrons:
Electrons are negatively charged particles that circle the nucleus of the atom. They circle so fast that they create what is called an electron cloud around the nucleus.
Nucleus:
The nucleus is the middle of the atom, and it is made up of protons and neutrons.
2) CHEMICAL BONDING:
A chemical bond is an attraction between two or more atoms that form a chemical. Chemicals are materials that contain two or more atoms connected with chemical bonds. There are three types of chemical bonds:
Ionic Bond:
Ionic Bonds are bonds that occur when an atom donates or accepts electrons from another.
Covalent Bond:
Covalent Bonds are bonds that occur when two atoms share electrons.
Metallic Bond:
A Metallic bond is the way that metal atoms are kept together within a metal material.
3) PERIODICITY:
Periodicity is the occurrence of elements with similar properties after certain regular intervals when they are arranged in increasing order of atomic number. Below are the properties of periodicity:
- Atomic Radius
- Ionic Radius
- Ionization Energy
- Electron Affinity
- Electronegativity
- Metallic Character
4) STATES OF MATTER:
There are four states of matter listed below:
Solid State:
In the solid state of matter, particles are closely packed and cannot move freely due to fixed positions and can only vibrate at their fixed positions.
Liquid State:
In the liquid state of matter, particles are less tightly packed and can move freely when heated and particles obtain the shape of a container in which they are put.
Gaseous State:
In the gaseous state of matter, particles are far apart from each other and can move freely.
Plasma:
Plasma is generally not seen as a state of matter. Plasma consists of particles with extremely high kinetic energy. Electricity is used to ionize noble gases and make glowing signs, which is essentially plasma.
5) CHEMICAL REACTION:
A chemical reaction is a process in which one or more substances, which are known as reactants, are converted to one or more different substances, which are known as products. There are five basic types of chemical reactions:
- Synthesis Reaction
- Decomposition Reaction
- Single Replacement Reaction
- Double Replacement Reaction
- Combustion Reaction
6) THERMOCHEMISTRY:
Thermochemistry is the study of the heat energy, which is associated with chemical reactions or phase changes such as melting and boiling. Thermochemistry is useful in predicting reactant and product quantities throughout a given reaction. It is also used to predict whether a reaction is spontaneous or non-spontaneous. It involves two types of reactions:
Exothermic Reaction:
Exothermic Reactions release heat.
Endothermic Reactions:
Endothermic Reactions absorb heat.
7) SOLUTION CHEMISTRY:
A solution, in chemistry, is a homogenous mixture of two or more substances in relative amounts that can be varied continuously up to solubility. The particles of a solution are too tiny and have a diameter of less than 1nm. The particles are not visible to the naked eye. A solution in solution chemistry consists of two components:
Solvent:
The component that dissolves the other component is called a solvent.
Solute:
The components that are dissolved in the solvent are collectively called the solute.
A total of nine types of solutions exist in solution chemistry:
- Solid-Solid Solution
- Solid-Liquid Solution
- Solid-Gas Solution
- Liquid-Solid Solution
- Liquid-Gas Solution
- Gas-Solid Solution
- Gas-Liquid Solution
- Gas-Gas Solution
8) ACIDS AND BASES:
An acid is any hydrogen-containing substance that is capable of donating a proton (hydrogen ion) to another substance.
Properties of Acids:
- Acidic substances are usually identified by their sour taste.
- An acid is a molecule, which can donate an H+ ion and can remain energetically favourable after a loss of H+.
- Acids are known to turn blue litmus red.
A base is a molecule or ion able to accept a hydrogen ion from an acid.
Properties of Bases:
- Bases are characterized by a bitter taste and a slippery texture.
- A base that can be dissolved in water is referred to as an alkali.
- When these substances chemically react with acids, they yield salts.
- Bases are known to turn red litmus blue.
CONCLUSION:
Ultimately, online chemistry classes introduce students to fundamental concepts like atomic structure, chemical bonding, and reaction kinetics. By leveraging interactive tools, these classes facilitate deeper comprehension and practical application. As technology progresses, online learning continues to serve as a valuable resource in fostering scientific curiosity and understanding. I hope you found this article worthy!