![RedOx notes:](http://s1.studyres.com/store/data/009778278_1-d7fdd8575df36917508fd5fd643cdb48-300x300.png)
RedOx notes:
... - the elements in the middle of the periodic table choose last so they have to take on a charge to balance the rest (you can’t always get what you wanted, but if you try real hard you (might just get) what you(“We, the compound”) need) ...
... - the elements in the middle of the periodic table choose last so they have to take on a charge to balance the rest (you can’t always get what you wanted, but if you try real hard you (might just get) what you(“We, the compound”) need) ...
Chemical Change
... Atoms of Hydrogen and Oxygen are different in the number of subatomic particles they have This means that their reactivity is going to ...
... Atoms of Hydrogen and Oxygen are different in the number of subatomic particles they have This means that their reactivity is going to ...
Chapter 5 – Chemical Reactions
... concentrated acid will react faster than a dilute acid) Add a catalyst – a catalyst is a chemical that speeds up a reaction but does not get used up by the reaction ...
... concentrated acid will react faster than a dilute acid) Add a catalyst – a catalyst is a chemical that speeds up a reaction but does not get used up by the reaction ...
PowerPoint
... Oxidation-Reduction Reactions • “Redox Reactions” – Involve the transfer of one or more electrons from one substance to another – Examples • Formation of compounds from its elements and vice versa • Combustion reactions • Reactions that produce electricity in batteries • Cellular Respiration (energ ...
... Oxidation-Reduction Reactions • “Redox Reactions” – Involve the transfer of one or more electrons from one substance to another – Examples • Formation of compounds from its elements and vice versa • Combustion reactions • Reactions that produce electricity in batteries • Cellular Respiration (energ ...
Chemistry 40S – Exam Review
... 4. What is the oxidation number of nitrogen in NH4OH? 5. Which incomplete half-reaction is an oxidation reaction? (L.E.O.) a) 2H+(aq) + ½ O2(g) H2O(l) b) Cr2O72-(aq) + 14H+(aq) 2Cr3+(aq) + 7H2O(l) c) K+(aq) K(s) d) 2I-(aq) I2(s) 6. In redox reactions, a) oxidizing agents lose electrons and a ...
... 4. What is the oxidation number of nitrogen in NH4OH? 5. Which incomplete half-reaction is an oxidation reaction? (L.E.O.) a) 2H+(aq) + ½ O2(g) H2O(l) b) Cr2O72-(aq) + 14H+(aq) 2Cr3+(aq) + 7H2O(l) c) K+(aq) K(s) d) 2I-(aq) I2(s) 6. In redox reactions, a) oxidizing agents lose electrons and a ...
CHEM 101 1st Major (Term 161)
... A) It slightly ionizes in aqueous solution. B) Its aqueous solutions conduct electricity. C) It is soluble in water. D) It is a strong electrolyte. E) It produces H+ and NO3- in aqueous solution. ...
... A) It slightly ionizes in aqueous solution. B) Its aqueous solutions conduct electricity. C) It is soluble in water. D) It is a strong electrolyte. E) It produces H+ and NO3- in aqueous solution. ...
Basic Chemistry – Terminology and Reactions
... from its salt solution is called Simple Displacement Reaction. Occur between a metal element and a compound. The metal element replaces an element in the compound. Common elements that swap are two metals or a metal and hydrogen For example: 1. Word equation: Magnesium + Zinc ...
... from its salt solution is called Simple Displacement Reaction. Occur between a metal element and a compound. The metal element replaces an element in the compound. Common elements that swap are two metals or a metal and hydrogen For example: 1. Word equation: Magnesium + Zinc ...
S3 Chemistry - eduBuzz.org
... Identify the 3 sub atomic particles in an atom State the location, charge and mass of each sub atomic particle Calculate the number of protons, neutrons and electrons in an atom Identify whether a species has an equal or unequal number of protons and electrons and use this to state whether i ...
... Identify the 3 sub atomic particles in an atom State the location, charge and mass of each sub atomic particle Calculate the number of protons, neutrons and electrons in an atom Identify whether a species has an equal or unequal number of protons and electrons and use this to state whether i ...
Shiny, Happy Pretest - Alex LeMay – Science
... 20. Said the universe was made of atomos, or small, indivisible particles. Thought these particles were earth, air, fire, and water. __________________ III. Match the laws with their definition. A. Law of Conservation of Mass B. Law of Definite Proportion C. Law of Multiple Proportions _____21. Natu ...
... 20. Said the universe was made of atomos, or small, indivisible particles. Thought these particles were earth, air, fire, and water. __________________ III. Match the laws with their definition. A. Law of Conservation of Mass B. Law of Definite Proportion C. Law of Multiple Proportions _____21. Natu ...
WS on obj. 1-11
... 30. _____________________________________ are neutral groups of atoms that act as a unit. 31. _____ (T/F) Molecular formulas show the number and kinds of atoms present in an ionic compound. 32. _____ (T/F)Molecular compounds are composed of a metal and a nonmetal. 33. Identify the following substanc ...
... 30. _____________________________________ are neutral groups of atoms that act as a unit. 31. _____ (T/F) Molecular formulas show the number and kinds of atoms present in an ionic compound. 32. _____ (T/F)Molecular compounds are composed of a metal and a nonmetal. 33. Identify the following substanc ...
TYPES OF CHEMICAL REACTIONS AND SOLUTION CHEMISTRY
... 1. 2 Na (s) + Cl2 (g) → 2 NaCl (s) 2. Both reactants have no charge, they are neutral. NaCl is an ionic compound containing Na+ ions and Clions. 3. reactions like this one, in which one or more electrons are transferred are called _________________________ reactions, or _______________ reactions. 4. ...
... 1. 2 Na (s) + Cl2 (g) → 2 NaCl (s) 2. Both reactants have no charge, they are neutral. NaCl is an ionic compound containing Na+ ions and Clions. 3. reactions like this one, in which one or more electrons are transferred are called _________________________ reactions, or _______________ reactions. 4. ...
Chapter 4 - Colby College Wiki
... The oxidation state of a species increases (becomes more positive) Electrons are lost by the atom During a Reduction The oxidation state of a species decreases (becomes more negative) Electrons are gained by the atom Oxidation and reduction always occur together. ...
... The oxidation state of a species increases (becomes more positive) Electrons are lost by the atom During a Reduction The oxidation state of a species decreases (becomes more negative) Electrons are gained by the atom Oxidation and reduction always occur together. ...
Types of Chemical Reactions - Celebrity Examples
... take place in aqueous solution | Often produce a precipitate, gas, or molecular compound (H2O) y Example: Na2S (aq) + Cd(NO3)2 (aq) CdS (s) + 2 NaNO3 (aq) ...
... take place in aqueous solution | Often produce a precipitate, gas, or molecular compound (H2O) y Example: Na2S (aq) + Cd(NO3)2 (aq) CdS (s) + 2 NaNO3 (aq) ...
Electron Arrangement
... forces holding the molecules together. Van der Waals’ forces increase with increasing size. Polar Covalent Bonding This occurs when 2 non-metal atoms form a covalent bond but the electrons are not shared equally. They sit closer to one atom than the other. The one closest to the electrons then has a ...
... forces holding the molecules together. Van der Waals’ forces increase with increasing size. Polar Covalent Bonding This occurs when 2 non-metal atoms form a covalent bond but the electrons are not shared equally. They sit closer to one atom than the other. The one closest to the electrons then has a ...
Bonding. A. Ionic bonds form when anions and cations arise
... Because of the electronegativity differences between atoms, it is not always possible for the octet rules to be followed rigorously. Oxidation numbers offer a summary of the octet rule each atom followed in the bonding process. Follow these rules to determine the oxidation number of any atom: 1. The ...
... Because of the electronegativity differences between atoms, it is not always possible for the octet rules to be followed rigorously. Oxidation numbers offer a summary of the octet rule each atom followed in the bonding process. Follow these rules to determine the oxidation number of any atom: 1. The ...
PDF
... are not the amounts that would be produced if the reactions were actually done in the laboratory. In each case, less product would be obtained than was calculated. There are numerous causes. Some materials are lost during transfers from one container to another and side reactions take place that are ...
... are not the amounts that would be produced if the reactions were actually done in the laboratory. In each case, less product would be obtained than was calculated. There are numerous causes. Some materials are lost during transfers from one container to another and side reactions take place that are ...
Valence Electrons and Chemical Bonding
... can unite chemically to form compounds when conditions are ...
... can unite chemically to form compounds when conditions are ...
Redox
![](https://commons.wikimedia.org/wiki/Special:FilePath/NaF.gif?width=300)
Redox reactions include all chemical reactions in which atoms have their oxidation state changed; in general, redox reactions involve the transfer of electrons between species. The term ""redox"" comes from two concepts involved with electron transfer: reduction and oxidation. 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.Although oxidation reactions are commonly associated with the formation of oxides from oxygen molecules, these are only specific examples of a more general concept of reactions involving electron transfer.Redox reactions, or oxidation-reduction reactions, have a number of similarities to acid–base reactions. Like acid–base reactions, redox reactions are a matched set, that is, there cannot be an oxidation reaction without a reduction reaction happening simultaneously. The oxidation alone and the reduction alone are each called a half-reaction, because two half-reactions always occur together to form a whole reaction. When writing half-reactions, the gained or lost electrons are typically included explicitly in order that the half-reaction be balanced with respect to electric charge.Though sufficient for many purposes, these descriptions are not precisely correct. Oxidation and reduction properly refer to a change in oxidation state — the actual transfer of electrons may never occur. The oxidation state of an atom is the fictitious charge that an atom would have if all bonds between atoms of different elements were 100% ionic. Thus, oxidation is better defined as an increase in oxidation state, and reduction as a decrease in oxidation state. In practice, the transfer of electrons will always cause a change in oxidation state, but there are many reactions that are classed as ""redox"" even though no electron transfer occurs (such as those involving covalent bonds).There are simple redox processes, such as the oxidation of carbon to yield carbon dioxide (CO2) or the reduction of carbon by hydrogen to yield methane (CH4), and more complex processes such as the oxidation of glucose (C6H12O6) in the human body through a series of complex electron transfer processes.