![Introduction to Chemical Equations](http://s1.studyres.com/store/data/000415702_1-77933b774eb1ea378bba92e453ea18d9-300x300.png)
Introduction to Chemical Equations
... A chemical reaction is happening! Matter is being rearranged, but NO mass is lost. If you were to collect all of the products and measure their mass, it would be equal to the original mass of the wood. ...
... A chemical reaction is happening! Matter is being rearranged, but NO mass is lost. If you were to collect all of the products and measure their mass, it would be equal to the original mass of the wood. ...
Chapter 6: Chemical Reactions – Study Guide
... a. Solid lead (II) sulfide reacts with aqueous hydrochloric acid to form solid lead (II) chloride and dihydrogen sulfide gas. ...
... a. Solid lead (II) sulfide reacts with aqueous hydrochloric acid to form solid lead (II) chloride and dihydrogen sulfide gas. ...
CHAPTER 19
... But why do we say a substance is reduced when it gains electrons? Remember, when electrons are gained, their negative electrical charge will cause the overall oxidation number to drop, that is, be reduced. A transfer of electrons causes changes in the oxidation states of one or more elements. Any ch ...
... But why do we say a substance is reduced when it gains electrons? Remember, when electrons are gained, their negative electrical charge will cause the overall oxidation number to drop, that is, be reduced. A transfer of electrons causes changes in the oxidation states of one or more elements. Any ch ...
Semester 1 Exam Review Part 1
... atomic number is equal to the number of protons in the nucleus A = Atomic Number These are all equal to each P = Proton Number other E = Electron Number ...
... atomic number is equal to the number of protons in the nucleus A = Atomic Number These are all equal to each P = Proton Number other E = Electron Number ...
200 Things to Know to Pass the Chemistry Regents
... Which of the following atoms forms a stable ion that does not have an octet structure? Li F Na Cl 98. Covalent bonds form when two atoms share a pair of electrons. How many covalent bonds are found in a nitrogen (N2) molecule? 99. Ionic bonds form when one atom transfers an electron to another atom ...
... Which of the following atoms forms a stable ion that does not have an octet structure? Li F Na Cl 98. Covalent bonds form when two atoms share a pair of electrons. How many covalent bonds are found in a nitrogen (N2) molecule? 99. Ionic bonds form when one atom transfers an electron to another atom ...
200 Ways to Pass the Chemistry
... Which of the following atoms forms a stable ion that does not have an octet structure? Li F Na Cl 98. Covalent bonds form when two atoms share a pair of electrons. How many covalent bonds are found in a nitrogen (N2) molecule? 99. Ionic bonds form when one atom transfers an electron to another atom ...
... Which of the following atoms forms a stable ion that does not have an octet structure? Li F Na Cl 98. Covalent bonds form when two atoms share a pair of electrons. How many covalent bonds are found in a nitrogen (N2) molecule? 99. Ionic bonds form when one atom transfers an electron to another atom ...
200things2know
... Which of the following atoms forms a stable ion that does not have an octet structure? Li F Na Cl 98. Covalent bonds form when two atoms share a pair of electrons. How many covalent bonds are found in a nitrogen (N2) molecule? 99. Ionic bonds form when one atom transfers an electron to another atom ...
... Which of the following atoms forms a stable ion that does not have an octet structure? Li F Na Cl 98. Covalent bonds form when two atoms share a pair of electrons. How many covalent bonds are found in a nitrogen (N2) molecule? 99. Ionic bonds form when one atom transfers an electron to another atom ...
Final
... Write complete ionic and net ionic equations for precipitation and acid/base neutralization reactions Determine whether a material is a strong, weak or non electrolyte Be able to distinguish between your strong acids, weak acids, strong bases, and weak bases. Be able to determine the oxidation state ...
... Write complete ionic and net ionic equations for precipitation and acid/base neutralization reactions Determine whether a material is a strong, weak or non electrolyte Be able to distinguish between your strong acids, weak acids, strong bases, and weak bases. Be able to determine the oxidation state ...
Chapter 4 Student Notes
... A redox equation is balanced if: it is balanced for atoms on each side. the total electrons lost and gained are equal. the reducing agent: the oxidizing agent: Our equation now looks like this: ...
... A redox equation is balanced if: it is balanced for atoms on each side. the total electrons lost and gained are equal. the reducing agent: the oxidizing agent: Our equation now looks like this: ...
Ionic Compounds 1. What is the formula for aluminum phosphate
... Use the following to answer questions 1-2: Consider three 1-L flasks at STP. Flask A contains NH3 gas, flask B contains NO2 gas, and flask C contains N2 gas. 1. Which contains the largest number of molecules? 2. In which flask do the molecules have the highest average velocity, speed? 3. A gas sampl ...
... Use the following to answer questions 1-2: Consider three 1-L flasks at STP. Flask A contains NH3 gas, flask B contains NO2 gas, and flask C contains N2 gas. 1. Which contains the largest number of molecules? 2. In which flask do the molecules have the highest average velocity, speed? 3. A gas sampl ...
Chemical reactions
... reaction. They are written in the left term of the equation. Reaction products = substances formed in a chemical reaction. They are written in the right term of the equation Because in a chemical reaction, the nature of atoms of the substances is not changed, the chemical equations are equalized so ...
... reaction. They are written in the left term of the equation. Reaction products = substances formed in a chemical reaction. They are written in the right term of the equation Because in a chemical reaction, the nature of atoms of the substances is not changed, the chemical equations are equalized so ...
CHEMICAL REACTIONS
... Oxidizing agent - A substance that causes oxidation of another substance (it is, itself, reduced) Reducing agent - A substance that causes reduction of another substance (it is, itself, oxidized). (OIL RIG or LEO says GER) The most active elements in the activity series are the most powerful reducin ...
... Oxidizing agent - A substance that causes oxidation of another substance (it is, itself, reduced) Reducing agent - A substance that causes reduction of another substance (it is, itself, oxidized). (OIL RIG or LEO says GER) The most active elements in the activity series are the most powerful reducin ...
Chapter 10 Chemical Reactions
... Example: Predict the products for Zn(s) + HCl(aq) ??? 1. Check the activity series between Zn and H. Find out that Zn is more active than H. 2. Thus the Zn wants to have a friend. Note that metals bond with negatively charged nonmetals. Thus the friend will be Cl and not H because Cl is -1 charged ...
... Example: Predict the products for Zn(s) + HCl(aq) ??? 1. Check the activity series between Zn and H. Find out that Zn is more active than H. 2. Thus the Zn wants to have a friend. Note that metals bond with negatively charged nonmetals. Thus the friend will be Cl and not H because Cl is -1 charged ...
Mechanism and Elementary Reactions
... simplify the rate expressions for complex reaction networks. Without further redue, let’s get into the details! The important difference between a reaction with an observed stoichiometry and an elementary reaction is that the stoichiometry of an elementary reaction defines the concentration dependen ...
... simplify the rate expressions for complex reaction networks. Without further redue, let’s get into the details! The important difference between a reaction with an observed stoichiometry and an elementary reaction is that the stoichiometry of an elementary reaction defines the concentration dependen ...
Final Exam Practice-2017
... a) The molecule IS / IS NOT rapidly oscillating between different forms. b) There is ONE / MORE THAN ONE form of the of the actual molecule and the bond lengths of single bonds vs doubles bonds between the atoms are DIFFERENT / AN AVERAGE . c) We draw ONE / MORE THAN ONE Lewis structure to describe ...
... a) The molecule IS / IS NOT rapidly oscillating between different forms. b) There is ONE / MORE THAN ONE form of the of the actual molecule and the bond lengths of single bonds vs doubles bonds between the atoms are DIFFERENT / AN AVERAGE . c) We draw ONE / MORE THAN ONE Lewis structure to describe ...
The Basics - I`m a faculty member, and I need web space. What
... • Now all that is left to balance is the oxygen. There are 2 O on the reactant side and 7 on the product side. Our only source of oxygen is the O2. Any whole number we place in front of the O2 will result in an even number of atoms. The only way to balance the equation is to use a coefficient of 7/2 ...
... • Now all that is left to balance is the oxygen. There are 2 O on the reactant side and 7 on the product side. Our only source of oxygen is the O2. Any whole number we place in front of the O2 will result in an even number of atoms. The only way to balance the equation is to use a coefficient of 7/2 ...
RedOx notes:
... must have the charge that makes everything else sum to zero. If you don’t choose first you might not get your first choice (you can’t always get what you wanted, but if you try real hard you (might just get) what you (“We, the compound”) need) ...
... must have the charge that makes everything else sum to zero. If you don’t choose first you might not get your first choice (you can’t always get what you wanted, but if you try real hard you (might just get) what you (“We, the compound”) need) ...
Atomic Structure 1. Historical perspective of the model of the atom a
... of the same type of element have the same chemical properties, compounds are formed by two or more different types of atoms, and that a chemical reaction involves either, joining, separating, or rearranging atoms. b.) In 1910, Ernest Rutherford passed alpha particles through gold foil which showed t ...
... of the same type of element have the same chemical properties, compounds are formed by two or more different types of atoms, and that a chemical reaction involves either, joining, separating, or rearranging atoms. b.) In 1910, Ernest Rutherford passed alpha particles through gold foil which showed t ...
Matter in Chemistry
... A chemical change occurs when matter changes chemically into an entirely different substance with different properties. • When vinegar (liquid) and baking soda (solid) combine, they form carbon dioxide (gas). ...
... A chemical change occurs when matter changes chemically into an entirely different substance with different properties. • When vinegar (liquid) and baking soda (solid) combine, they form carbon dioxide (gas). ...
ATOMS
... • This is the current model we use today & is more accurate. It says that electrons are found in a “cloud” around the nucleus (kind of like the spray of water from a sprinkler, each drop represents where an electron might be). • Electron Cloud Model Video (00:33) ...
... • This is the current model we use today & is more accurate. It says that electrons are found in a “cloud” around the nucleus (kind of like the spray of water from a sprinkler, each drop represents where an electron might be). • Electron Cloud Model Video (00:33) ...
+ H 2 SO 4(aq) - Rothschild Science
... If a metal is more reactive than the metal it is displacing a rxn will occur. If the metal is less reactive than the metal it is displacing, a rxn will not occur. ...
... If a metal is more reactive than the metal it is displacing a rxn will occur. If the metal is less reactive than the metal it is displacing, a rxn will not occur. ...
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.