The document discusses net ionic equations, which involve writing molecular and ionic equations and identifying spectator ions. A molecular equation shows all species as whole units, while an ionic equation shows dissolved species as free ions. To write a net ionic equation, the molecular equation is first written and balanced, then molecules are broken into ions. Spectator ions that are present on both sides of the reaction are then canceled to give the net ionic equation. The document also discusses what substances will ionize or dissociate into ions in solution based on their type (salt, acid, base) and whether they are considered strong electrolytes.
Introduction to redox reactions
References
Tindale, Ritchie et al, 2014, Chemistry for CSEC 2nd Edition, Nelson Thornes. p156-159
Electron Transfer in Redox Reactions Todayhttps://www.sewanhakaschools.org
A basic introduction to writing word equations in Middle School Chemistry.
Includes common reaction examples that can be easily replicated in the classroom.
✔Here is an introduction to the Chemistry of Life, where you will learn about Ionic, Covalent and Metallic bonds. This presentation touches briefly, but it covers the definition of three major types of chemical bonds: ionic, covalent, and metallic. Ionic bonds form due to the transfer of an electron from one atom to another. Covalent bonds involve the sharing of electrons between two atoms. Metallic bonds are formed by the attraction between metal ions and delocalized, or "free" electrons.✔
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Introduction to redox reactions
References
Tindale, Ritchie et al, 2014, Chemistry for CSEC 2nd Edition, Nelson Thornes. p156-159
Electron Transfer in Redox Reactions Todayhttps://www.sewanhakaschools.org
A basic introduction to writing word equations in Middle School Chemistry.
Includes common reaction examples that can be easily replicated in the classroom.
✔Here is an introduction to the Chemistry of Life, where you will learn about Ionic, Covalent and Metallic bonds. This presentation touches briefly, but it covers the definition of three major types of chemical bonds: ionic, covalent, and metallic. Ionic bonds form due to the transfer of an electron from one atom to another. Covalent bonds involve the sharing of electrons between two atoms. Metallic bonds are formed by the attraction between metal ions and delocalized, or "free" electrons.✔
Here is a YouTube of this presentation:
➡➡➡https://www.youtube.com/watch?v=8cRQjClbeas&feature=youtu.be
Check out more interesting posts on LabGirl:
➡➡➡ https://www.facebook.com/labgirldzd
Thank you! :)
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Introduces the concepts involved in predicting whether substances are soluble or insoluble. Precipitation (exchange) reactions are also discussed, along with ionic equations and net ionic equations. General Chemistry
trains students in the state symbols for reactants and products in a chemical equation.
Elements in their elemental form and compounds are divided into covalent and ionic compounds for classification and easier identification of relevant state symbols.
6. Molecular vs. Ionic Equations Na + Na + Cl - Cl - Cl - Na + H + OH -1 OH -1 H + H + 3 NaCl 3 H 2 O OH -1
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12. SALTS The Solubility Table p. 344 Ion Solubility Exceptions NO 3 – soluble none ClO 4 – soluble none Cl – soluble except Ag + , Hg 2 2+ , *Pb 2+ I – soluble except Ag + , Hg 2 2+ , *Pb 2+ SO 4 2- soluble except Ca 2+ , Ba 2+ , Sr 2+ , Hg 2+ , Pb 2+ , Ag + CO 3 2- insoluble except Group IA and NH 4 + PO 4 3- insoluble except Group IA and NH 4 + OH – insoluble except Group IA, *Ca 2+ , Ba 2+ , Sr 2+ S 2- insoluble except Group IA, IIA and NH 4 + Na + soluble none K + soluble none NH 4 + soluble none
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Editor's Notes
To understand why a pickle will glow when electricity is passed through it, you need to understand today’s lesson. Earlier in the year you discussed writing molecular equations, today we are going to discuss how to write net ionic equations, and talk about all the terminology associated. Movie Explanation: When energy is added to electrons in an atom they give off visible light (in waves). Soduim Chloride (NaCl) emits a yellow / orange color Ok what does all this have to do with a glowing pickle??? Well what is in a pickle? Salt - NaCl. So if you add energy to the sodium atoms in the pickle, the pickle will glow
Solute – the substance present in smaller amount in a solution Solvent – the substance present in larger amount in a solution Solution – A homogeneous mixture of two or more substances Homogeneous Mixture – A mixture that is the same throughout. Mixture – a combo of two or more substances in which the substances retain their identity. Dissolve – To pass into solution, or break into component parts.
In many cases, reactants and/or products will exist in solution as ions so its more accurate to write an ionic equation for a reaction. Molecular equation represents a chemical reaction of two or more substances and shows reactants and products in their molecular form Ionic equation shows soluble salts, acids, and bases that ionize (break apart) completely as ions, their true form in solution.
If phase labels are persent, soluble salts, acids, and bases that ionize completely are labeled aqueous Pure liquids, solids, and gases to not ionize If phase labels are not given, you must use the solubility table to determine which salts are soluble. Watch for Exceptions on the table You will also need to determine if acids and bases present will ionize. Only strong acids and bases ionize completely.
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