MODULE ABOUT REDUCTION-OXIDATION REACTION (REDOX) Puzon, Trisha Gaile V. 9-Kelvin Ms. Laura Canceran INTRODUCTION As time passes by, I’ve realized many things such as chemistry isn’t easy subject to learn because sometimes intelligence doesn’t matter the most. Intelligence must be mixed with some hardwork and dedication. In our Grade 7 & 8, we’ve tackled about the basic properties of common elements but now we are studying it in more complicated way than before so I think it is kind of challenge for me. I must admit that I’m not good at chemistry, like those studying of elements and memorizing such atomic masses and other stuffs. For me, mastering any topic in Chemistry is one of the biggest achievements in life. This module …show more content…
Any such reaction involves both a reduction process and a complementary oxidation process, two key concepts involved with electron transfer processes.n Redox reactions include all chemical reactions in which atoms have their oxidation state changed; in general, redox reactions involve the transfer of electrons between chemical species. The chemical species from which the electron is stripped is said to have been oxidized, while the chemical species to which the electron is added is said to have been reduced. It can be explained in simple terms: Oxidation is the loss of electrons or an increase in oxidation state by a molecule, atom, or ion.Reduction is the gain of electrons or a decrease in oxidation state by a molecule, atom, or ion.As an example, during the combustion of wood, oxygen from the air is reduced, transferring electrons from the carbon. OBJECTIVES • To be able to solve reduction oxidation reaction problems. • To show the step by step procedure on how redox is happening. Redox Reaction What is “Redox Reaction”? It is a short term for REDuction-OXidation Reaction It is made up of two half made reactions. It is a reaction in which the electrons are transferred from one species to another. Redox reactions normally require the presence of two reactants: • in one reactant has the oxidation number of an element …show more content…
Decomposition b. Displacement c. Evaporation d. Combination 4. REDOX is made up of ________. a. Two half reactions b. Oxygen c. Hydrogen d. Both B and C 5. What is the first thing you need to do when doing REDOX Reactions? a. Find the oxidation and reduction elements. b. Assign oxidation numbers c. Recombine half reactions d. Balance electron transfer 6. What is the reducing agent for the given below? Cl2(aq)+2Br−(aq)→2Cl−(aq)+Br2(aq)Cl2(aq)+2Br−(aq)→2Cl−(aq)+Br2(aq) a. Hydrogen b. Cl c. Br d. Not redox 7. What is the oxidizing agent for the given in #6? a. Cl b. Br c. None of the Above d. Not redox 8. What do you call to the process of losing of electrons or an increase in oxidation state by a molecule? a. Oxidation b. Reaction c. Combustion d. Reduction 9. What do you call to the type of REDOX that means breakdown of a chemical compound into its component elements? a. Combination b. Decomposition c. Displacement d. Condensation 10. What do you call to the type of REDOX that combine elements to form a chemical compound. In this case, oxidation & reduction occur together. a. Combination b. Decomposition c. Displacement d. Condensation ANSWER KEY: 1. D 2. D 3. C 4. A 5. B 6. C 7. A 8. A 9. B 10.
Combustion is an exothermic reaction that reacts when in contact with oxygen producing heat and a new product. These reactions are as exothermic as it gets. The general form of a combustion reaction is the reaction between a hydrocarbon and oxygen to create carbon dioxide and water. Hydrocarbon + O₂→CO₂+H₂O. Occasionally, these reactions can release light and produce a flame. To start a reaction, most require a flame to provide heat and initiate the reaction. Combustion is a very common reaction. It's what makes our cars go, and it's what burning is. It is containing carbon which reacts with oxygen to form CO2 and H2O. A simple example of the combustion of Methane, a natural gas, CH4 + 2O2 →CO2 + 2H2O. Another example includes the burning of naphthalene with the equation C10H8 + 12 O2 → 10 CO2 + 4 H2O. The combustion of ethane is 2C2H6 + 7O2 → 4CO2 + 6H2O which is another example. A real life example is the combustion of gunpowder. Gunpowder is a mix of potassium nitrate, charcoal, and sulfur. The potassium nitrate decomposes at a high temperature to provide the oxygen needed. The charcoal and sulfur are the fuels in this reaction. The equation for this reaction is as follows 2 KNO₃ + S +3 C →K₂S + N₂ + 3 CO₂. An incomplete reaction occurs when the oxygen is
The Cartoon Guide to Chemistry by Larry Gonick and Craig Criddle is a non-fiction book that utilizes visual images and cartoons to cover the basics and intricacies of Chemistry. It consists of two-hundred and fifty-six pages and was published by Collins Reference on May 3, 2005. It covers topics such as chemicals reactions, solutions, acid basis, and chemical thermodynamics in unique fashion that makes chemistry fun and easy to learn as well as understand. The book has no consistent build up or story to it. It simply moves from chemistry subject A to chemistry subject B, explaining the various components that make up the subject of chemistry.
The purpose of this lab was to to cycle solid copper through a series of chemical forms and return it to its original form. A specific quantity of copper undergo many types of reactions and went through its whole cycle, then returned to its solid copper to be weighted. We observed 5 chemical reactions involving copper which are: Redox reaction (which includes all chemical reactions in which atoms have their oxidation state changed), double displacement reaction, precipitation reaction, decomposition reaction, and single displacement reaction.
Covalent compounds are formed when two or more non-metals react together. The covalent compound is actually made of molecules, and the name given depends on the structure of these molecules. Prefixes, like di- for two, tri- for three, tetra- for four, and so forth, are frequently used. Thus, NO2 is nitrogen dioxide and N2O4 is dinitrogen
fibers. When ATP and is in turn broken down, the result is a spark of
- Breaks large molecules into small molecules by inserting a molecule of water into the chemical bonding.
Decomposition reactions Decomposition creations occur when compounds decompose into two different species. This, of course, is the opposite of a combination reaction. These reactions take the form of: XY →X+Y Decomposition reaction - copper carbonate to copper oxide and carbon dioxide. Types of chemical reactions, part 4 of 7.
– Introduction – In the body, the term for all chemical reactions that occur in the cells is called metabolism. The two types of chemical reactions, anabolic and catabolic, differ in the body. Anabolic reactions bodily cells build molecules and store energy in chemical bonds. Catabolic reactions are when these chemical bonds break and energy is released in the form of ATP or heat.
reaction is the rate of loss of a reactant or the rate of formation of
Reactions occur when the particles of reactants collide together continuously. If they collide with sufficient energy, then they will react. The minimum amount of kinetic energy required for particles at the time of collision is called the activation energy and this theory is known as the ?collision theory?.
I have always been inspired by the workings of chemistry and mathematics. My studies of these subjects have developed my understanding and have made me pursue my interest in these two topics. I want to take up chemistry as it involves a large amount of mathematics which I value and understand to be challenging, yet very enjoyable, as there is always an alternative route to obtain the answer. Additionally, I am drawn to the course because it is a mixture of all these exacting subjects, forming a degree that is very demanding and stimulating. Chemists are constantly thinking of new ways to produce viable drugs containing different isomers to improve the pharmaceutical sector using mathematical equations. Chemistry is about innovation, applying information to new areas and how to do things better than they were before, the degree appeals to and fascinates me.
~ Introduction ~ ~ ~ ~ ~ ~ Reduction and Oxidation (RedOx) reactions are known to be one of the most confusing lessons in Consumer Chemistry. This involves balancing equations in different sets of chemical equation. But before this, you need to master the concepts of Polyatomic Ions and Oxidation Numbers of the elements because in Red-Ox, you will need these skills to get the Net Ionic Equation we are looking for. Learning this topic can be an easy one if you carefully analyze the equation given. Guidelines or steps will be given for a better comprehension.
It involves collisions between the free electrons, the fixed. particles of the metal, other free electrons and impurities. These collisions convert some of the energy that the free electrons are. carrying heat, which means that electrical energy is lost. Apparatus: I will be using an Ammeter.
This form of chemical reaction is known as a single displacement reaction and is exothermic. The reaction is irreversible and is written as:
Electrophoresis is the migration of a charged molecule under the influence of an electric field . The electrophoretic mobility is given by :