What are the different bonds and how do you create a compound? Get some clarity in this thorough section. We cover a lot of ground here. What makes an acid or a base weak or strong? What are acids and bases in the first place? Polyatomic ions are ions with many atoms; they contain more than one element. They are charged just like regular ions; for example, an ion looks like this: Cl - , while a polyatomic ion looks like this: While the chloride ion only contains one element - chlorine - the chlorate ion contains both chlorine and oxygen.
Read this lesson for examples of other commonly known polyatomic ions. Electronegativity is a property of atoms that has to do with the tendency to attract electrons from another atom to form an ionic bond. Electronegativity is measured using the Pauling scale, which was instated by Linus Pauling. Read this lesson to find out all about electronegativity!
All reactions can be classified as endothermic storing energy or exothermic releasing energy. This lesson reviews the ways in which reactions store and give off energy, including items like heat, light, and mechanical energy. Hydrolysis occurs when one adds water to a compound, which causes the compound to break apart into a cation and an anion. Then, water can bond chemically with the substance, changing its chemical form.
These reactions often take place when ionic compounds dissolve in water. Read on to learn more about the process of hydrolysis! When a reaction is in a state of dynamic equilibrium, the reaction is reversible. This means that, to maintain equilibrium, the products break apart to form the reactants.
Read this lesson for more information on dynamic equilibrium! Enthalpy is a state function that is measured in kilojoules per mole. Enthalpy is abbreviated as H in the Gibbs free energy equation: Enthalpy can help an observer discern whether a reaction is endothermic or exothermic based on the enthalpy having a positive or negative value.
Read on to find out more about enthalpy! It is a spontaneous reaction that occurs naturally. Entropy measures the disorder of a system. Read this lesson to learn more about entropy! Mass spectrometry is used to experimentally determine the molecular weight of a sample by ionizing a molecule and passing it through electrical and magnetic fields.
The observer would then note how the ionized compound responds, which correlates with the molecular weight in a quantifiable way. Read on to learn more about the intricate process of mass spectrometry! The Born-Haber cycle is a series of chemical processes that are used to calculate the lattice energy of ionic solids. Read on for a definition of lattice energy as well as examples of how the Born-Haber cycle is used to calculate lattice energy.
This page identifies different types of bonds, including covalent, polar covalent, ionic, and hydrogen. It explains how to draw compound structures by counting electrons and placing bonds accordingly.
The Octet and Duet rules are also explained here. This page details how electrons are arranged in an atom, including information about the orbitals s, p, d, and f and how to easily tell which orbital an electron is in. Electron delocalization can be really confusing! In order to understand this concept, one must learn about resonance, bonding, and aromaticity. Read on for more information about electron delocalization! The Aufbau principle describes how electrons fill energy levels in an atom.
In order to write the electron configuration of an atom, one must know how the subshells fill. Using the diagonal rule will certainly help with this process. Browse Browse by subject. Email us if you want to cancel for any reason. Start your FREE trial. What best describes you? Choose one Student Teacher Parent Tutor. Your goal is required. Email Email is required. Email is not a valid email. Email already in use. Cancel before and your credit card will not be charged. Your Cart is Empty.
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Chemistry - The Central Science. Chemistry is also often referred to as “the central science”. In fact, that is the title of a common college textbook: Chemistry, The Central Science. This moniker is because the field of chemistry overlaps with so many other branches of science that it is considered a central connecting point for these various .
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