This course will first discuss the periodic table and the groups of elements. You will study chemistry symbols, atoms and molecules, elements, and compounds. You will also cover ions and particles, and study the three states of matter: liquids, gases, and solids. You will look into mixtures, and discuss the two types of corrosive substances: acids and bases. In addition, this course will discuss PH scales, PH meters, and acid-base indicators.Mixtures can be separated using different techniques. This course will discuss chromatography (which is used to separate mixtures of substances into their components), decanting (which is the separation of liquids from solids by gradual pouring), dissolving, solidification, and precipitation. You will also look into evaporation, distillation which purifies a liquid by heating or cooling, and filtration which separates solids from liquids using a medium. You will also study sublimation which is the transition of a substance directly from the solid to the gas phase.Chemistry is also known as the central science because it joins together biology and medicine, physics and mathematics, and the earth and environmental sciences. By the end of this course, you will have gained a deeper understanding of the behavior of atoms, molecules, and ions, all of which determines the very world we live in. So, check out this course today and start gaining a clearer understanding of the fundamentals of chemistry, all for free.

This course first introduces you to the definition of a contract and its three elements. It will teach you how to determine intent and how to communicate a contract. It then reviews a scenario about how a contract can be breached if one or more of the parties involved fail to fulfill their part of the agreement. You will learn how to resolve broken contracts in the form of damages.You will then learn about your rights as an injured party as to how a broken contract or breached contract can be remedied. In the business realm, you will never know what the other party is thinking or planning,and there can always be unexpected situations where someone tries to take advantage of you. This course will give you a better understanding of when and in what kinds of situations a contract must be used for your own protection.Many people enter an agreement without fully understanding the implications involved. Legal issues involving contracts often arise when one party fails to perform the legal obligation it has agreed to do. People should be aware of the validity and authenticity of a contract before agreeing to sign it. If you are a businessman or just a layperson who wish to enter into a legal agreement with another party, check out this course first in order to clearly understand the implications of having a written contract.

Molecules are made up of atoms and are the smallest particle in a chemical element or compound. This course will introduce you to the fundamentals of molecules and their composition. You will study molecular formulas, which are essentially the actual number of atoms in a molecule, and empirical formulas which tell you what people have observed. You will also study the mole and Avogadro's number which is equal to 6.023 × 10 to the power of 23.You will then study molecular formulas and empirical formulas from the mass composition and learn how to balance chemical equations. This course will also discuss stoichiometry which is the study or the calculation of the relationships between the different molecules in a reaction. You will also learn about the limiting reagent which is basically the reactant that produces the least amount of product. You will also study how to solve mass composition problems.Learning how to convert between atomic mass and grams using Avogadro’s number or the Mole is one of the important topics you will study in this course. Once you have mastered this, you will be able to easily work out ratios and weights of molecules. You will also learn how to balance chemical equations, and get viable chemical reactions by balancing the reactants within equations. So, check out this course and learn more about stoichiometry today!

Gas is one of the four fundamental states of matter. A pure gas may be composed of individual atoms, elemental molecules made from one type of atom, or compound molecules made from different atoms. A gas mixture, such as air, contains different types of pure gases. This course will first introduce you to an ideal gas which is a theoretical gas. You will learn that gas molecules exert no attractive or repulsive forces on each other which make their collisions elastic.Gases behave differently under pressure. This course will teach you how to calculate the pressure of a gas-filled container. You will study the Ideal Gas Law with the famous equation PV=nRT, its characteristics, and how to solve for any part of the Ideal Gas Equation. This course will also teach you how changes to pressure, temperature, or volume affect each other. You will also study the core units of measure for temperature.Studying the concept behind an ideal gas equation, PV=nRT can help you describe the relationship between pressure, volume, amount, and temperature of a gas. Because they are a simplified model of real gas, they can help explain the basics of the kinetic molecular theory which states that an increase in temperature raises the average kinetic energy of the molecules. So, check out this course and learn more about the behavior of gases, today.

A state of matter is one of the distinct forms in which matter can exist. This course will discuss the four observable states of matter in everyday life which are solid, liquid, gas, and plasma. You will learn that plasma is the most common state of matter in the universe. You will then learn that latent heat is the heat required to convert a solid into a liquid or vapor, or a liquid into a vapor without change of temperature.Vaporization is the heat needed to change the state of a substance from liquid to gas, while fusion is the heat needed to change the state of a substance from solid to liquid. This course will teach you how to calculate the change in energy needed to change the state of matter. You will learn how to read phase and phase change diagrams as well as look into a chilling water problem to better understand the state of matter phase change.All things are made up of matter, so by studying the properties of matter and learning their different physical characteristics you can understand the world around you a little bit better. This course give you that little bit of interesting knowledge in a clear manner. So, check out this course and learn what happens when matter changes from solid to liquid to gas in just a few short hours!

This course begins by discussing the factors that affect the chemical nature of substances. You will study Van Der Waals Forces which are the class of all of the intermolecular forces that are not covalent bonds nor ionic bonds. You will also look into covalent networks which are the strongest intermolecular forces or structures of elements, metallic crystals which are made of metal elements with atoms arranged in similar patterns, and ionic crystals which grow from ionic bonds and are held together by electrostatic attraction.You will then look into vapour pressure which is caused by the evaporation of liquids and study the three common factors that influence vapour pressure. This course will also discuss suspensions, colloids, and solutions. You will also study solubility which is the ability of a given substance to dissolve in a solvent, the boiling point elevation which is when the boiling point of a solution exceeds that of the solvent, and freezing point depression which is the decrease of the freezing point of a solvent on the addition of a non-volatile solute.Substances with strong bonds at standard temperature and pressure, like diamonds, have molecules that are extremely difficult to separate, whereas substances with weak bonds, like helium, remain in a gaseous form and do not condense into liquid or solid states. Upon the completion of this course, you learn more about how bond strength affects state change, the different types of bonds, and the different types of suspension. Sign up now and learn more about factors that affect the chemical nature of substances.

The mole concept states that one mole of any substance is the amount of that substance containing as many defined particles such as atoms, ions, or molecules as there are atoms in 12 g of carbon-12. This course will first give you an overview of the mole concept. You will then study volumetric analysis and important topics such as dilutions and titrations, analysis by chemical reaction, and analytical chemistry. You will also look into equilibrium in endothermic and exothermic reactions.You will then study Le Chatelier's principle and concentration-time graphs. This course will also discuss precipitation reactions, ionic equations, and solubility rules. You will study Water Kw and the use of the pH scale, gravimetric analysis, and spectroscopic techniques such as colorimetry. You will also study chromatographic techniques such as paper chromatography, thin-layer chromatography, and gas chromatography. Finally, you will look into industrial chemistry and cover petrochemical industry and techniques used such as refining crude oil and the fractional distillation of crude oil.By the end of this course you will have gained a better understanding of important chemistry concepts such as the procedures involved in volumetric analysis including titration and dilution. Your knowledge about analytical chemistry such as qualitative analysis, chemical reactions, gravimetric analysis, spectroscopic techniques, and chromatographic techniques will also have become clearer. This is essential knowledge for any aspiring scientist, so check out the course and start learning today!

This course will first discuss the origins of the periodic table and the important role of Dmitri Mendeleev. You will then study the trends in the periodic table and the elements of the first transition series. You will look into the history and development of atomic theory and study electrons, isotopes and relative atomic mass, and nuclear fission and fusion. This course will also discuss thermochemical equations, electrochemistry, electrolysis, fuel cells, and energy conversions.You will then study the nitrogen cycle and look into the use of nitrogenous fertilizers. This course will then cover the digestion of proteins, lipids, and carbohydrates, and discuss saturated and unsaturated fats, and vegetable oils. You will also cover nutrients and nutrition, and energy found in food. You will learn the role of water in chemistry, the relative energy content of foods, and the energy consumed in food production. You will also study the denaturation of proteins.After completing this course, you will have a much better understanding of the different elements of chemistry, and will be able to look at the periodic table and electron arrangements with new eyes. Students who take this course also get a better understanding of the history and development of atomic theory, the nitrogen cycle, digestion, carbohydrates, proteins, food components, glycogen, and other food concepts. So check out the course today and start gaining some interesting new knowledge.