Learn whether an ion is a cation or anion and how to write the formula depending on what charge the ion has. An important part of dealing with chemical compounds is knowing how to refer to them. Learn how to name all ionic compounds, including simple binary compounds, compounds containing transition metals and compounds containing polyatomic ions. In this lesson, you will learn how to write the chemical formulas for both binary ionic compounds and polyatomic ionic compounds when you are given only the name of the compound.
You will see that it is actually quite simple when you learn the steps described in this lesson. Learn about covalent bonds, how covalent compounds are formed and the properties inherent to covalent compounds, such as low melting and boiling points, in this lesson. Also, learn what rules to follow to name simple covalent compounds. Review what a Lewis dot diagram is and discover how to draw a Lewis dot structural formula for compounds. Learn how to represent single, double and triple bonds with lines instead of dots.
Also, learn how compounds arrange themselves. This lesson defines Lewis dot structures and explains how to draw them for molecules in step-by-step detail. Then, learn about resonance and resonance structures for molecules and polyatomic ions. Afterwards, assess your new knowledge with a quiz. Learn about covalent bonds and their two types: Discover how to predict the type of bond that will form based on the periodic table. Learn what ionic character means and how to determine it. Learn about intermolecular vs.
Learn the different intermolecular bonds including hydrogen bonding and dipole-dipole and ion-dipole forces , their strengths, and their effects on properties, such as boiling and melting points, solubility, and evaporation. Learn how London dispersion forces are created and what effect they have on properties such as boiling and melting points. Discover this weak intermolecular force and how it is one of the Van der Waals forces. Learn how to sketch the overlap of orbitals to form sigma and pi bonds.
Use the molecular orbital theory to determine bond order. Discover how bond order affects bond strength and bond energy. Learn why metallic bonding is called the electron sea model. Discover why metals bond the way they do and why they are shiny, malleable and conduct electricity well.
Understand what a macromolecule is and be able to identify both organic and inorganic macromolecules. Organic molecules include proteins, lipids, carbohydrates and nucleic acids.
Learn more about carbon and hydrogen and see how these atoms come together to form distinct molecules. Also, study the difference between saturated and unsaturated molecules. Learn what an organic compound is and how their functional groups affect them. Identify the different types of functional groups including alcohols, alkyl halides, ketones, aldehydes, ethers, carboxylic acids and esters. In this lesson, you will learn about polar molecules.
A few polar molecules will be discussed to describe the process of determining polarity. Finally, a test of your knowledge will be performed. Alkynes are identified as organic chemical compounds that have triple bonds in their chemical structure. They are organic compounds that are important in various industrial applications. In this lesson, we will learn all about alkynes.
You know that body fat you work so hard to burn off? And those proteins that keep your body functioning properly? They both contain cycloalkanes. The chemical compound responsible for keeping our swimming pools clean and safe is hypochlorous acid. Its chemical formula is HClO. In this lesson, we will learn about HClO and how to draw its Lewis structure. How do we know what names to call different ionic compounds? In chemistry, there are different types of ionic compounds.
In this lesson, we will go over these types and the rules we must follow to name them correctly. Did you know… We have over college courses that prepare you to earn credit by exam that is accepted by over 1, colleges and universities. You can test out of the first two years of college and save thousands off your degree. Anyone can earn credit-by-exam regardless of age or education level. To learn more, visit our Earning Credit Page.
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Test your knowledge with a question chapter practice test. View all practice tests in this course. Writing Ionic Compound Formulas: Polyatomic Ions This lesson defines Lewis dot structures and explains how to draw them for molecules in step-by-step detail. Strong Intermolecular Forces Learn about intermolecular vs.
Weak Intermolecular Forces Learn how London dispersion forces are created and what effect they have on properties such as boiling and melting points. Tutorial and Diagrams Learn how to sketch the overlap of orbitals to form sigma and pi bonds. Although not all ionic compounds dissolve to an appreciable extent in water, however almost all of them perhaps all of them dissolve to some extent and thus a solution of water and a specific ionic compound will conduct electricity.
This conclusion of mine is somewhat tentative. Last edited by a moderator: GCT , Aug 17, Aug 20, Dear Chemrookie, You asked about "What test would determine whether a solid substance contains ionic bonds? If a solid substance contains ionic bonds, the substance can be polarized, and conducts electricity.
This one is correct, as generalchemtutor explained. I think dimethylsulphoxide or dimethylformamide, with greater dielectrical constants, will help more than water, as some ionic substances may not be very soluble in aqueous solution.
Please note that my idea depends on solubility tests; other means of analysis are also present. Solubility is a simple way to go. Use solubility in water, dil. HCl other polar solvents as positive results and solubility in acetone, methanol, CS2 non-polar solvents as negative results. Gokul , Aug 20, Having issues with table..
Which elements are likley to be metals? E, F and G? Which are gases at STP? Which are most likley to be non-metallic solid? Which elements are liquid at degreescelcius? Which elements are likley to conduct well in the solid form?
ChemRookie , Aug 20, Aug 21, Standard Temperature and Pressure means K zero degrees centigrade and 1 atm pressure. Or will it be a liquid. Hydration Energy and Lattice Energy. Hydration or Solvation Energy depends on charge density: Greater Hydration Energy also means efficient solvation dissolution in water called hydration in your case. Cation should be small. Anion should be large. There should be a high charge on both. This means that the decreasing order of covalency is: Here factors 1 and 3 are constant and only the size of the anion affects covalency.
This explains melting point differences ionic compounds have larger melting points than corresponding covalent compounds. I would think that ionic compounds have greater lattice energy as compared to covalent compounds of similar molecular weight. If you think so, then NaF should be most soluble in water, contrary to the data that you have given. So I think this conclusion is a wrong one. The problem lies in the fact the lattice energy increases with increase in hydration energy due to the similar factors they individually depend on.
If the hydration energy offsets the energy required to break the lattice in solvation, the compound is soluble. If not, it is less or not soluble. So I would like to believe that in the sodium halide group, NaI having maximum covalent character and least melting point therefore has greatest solubility. I am waiting for someone to let us know Aug 22, ChemRookie , Aug 22, Aug 25, ChemRookie , Aug 25, Aug 30,
Chemical Bonding Assignment Help A Chemical Bond is an attraction between atoms that allows the formation of chemical substances that contain two or more atoms. The bond is caused by the electromagnetic force attraction between opposite charges, either between electrons and nuclei, or as the result of a dipole attraction.
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Chemical Bonding Assignment Help A chemical bond is an attraction between atoms that allows the formation of chemical substances that contain two or more atoms. Chemical bond is caused by the electrostatic force of attraction between opposite charges, or as the result of a dipole attraction. Homework Help On Chemical Bonding. homework help on chemical bonding Oct 04, Periodicity & Chemical Bonding Homework Help General Chem How does ionization energy change as one Homework help on chemical bonding Applying the knowledge of chemistry is an essential component to having a deep understanding of the science of biology.