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CHEMISTRY notes
... REMOVING REACTANT shifts left (removing product, right) ADDING/REMOVING ENERGY can shift it as well http://www.youtube.com/watch?v=a_4LUaaL6FU&feature=fvsr (blue bottle) http://www.youtube.com/watch?v=BqeWpywDuiY&feature=related (clock) ...
... REMOVING REACTANT shifts left (removing product, right) ADDING/REMOVING ENERGY can shift it as well http://www.youtube.com/watch?v=a_4LUaaL6FU&feature=fvsr (blue bottle) http://www.youtube.com/watch?v=BqeWpywDuiY&feature=related (clock) ...
Chapter 11 Chemical Reactions
... For some, we will be able to: c) predict whether or not they will happen at all. ...
... For some, we will be able to: c) predict whether or not they will happen at all. ...
Matter
... particles of substances separate and spread evenly amongst each other. • Solute – substance that is dissolved. A solute is soluble, or able to dissolve. • A substance that is insoluble is unable to dissolve, forms a mixture that is not homogeneous, and therefore NOT a solution. ...
... particles of substances separate and spread evenly amongst each other. • Solute – substance that is dissolved. A solute is soluble, or able to dissolve. • A substance that is insoluble is unable to dissolve, forms a mixture that is not homogeneous, and therefore NOT a solution. ...
CHEM 1305 - HCC Learning Web
... A) Monoatomic cation B) Monoatomic anion C) Polyatomic cation D) Polyatomic anion -------15. What is the chemical formula for the binary compound composed of Li+ and O2ions? A) LiO B) Li2O C) LiO2 D) Li2O2 -------16. What is the term for the relative order of metals arranged by their ability to unde ...
... A) Monoatomic cation B) Monoatomic anion C) Polyatomic cation D) Polyatomic anion -------15. What is the chemical formula for the binary compound composed of Li+ and O2ions? A) LiO B) Li2O C) LiO2 D) Li2O2 -------16. What is the term for the relative order of metals arranged by their ability to unde ...
SCIENCE 9
... has its own distinct properties and cannot be broken down into simpler substances by means of a chemical change. COMPOUNDS- are pure substances that are made up of two or more elements chemically combined together. Compounds can be broken down into elements again by chemical means ...
... has its own distinct properties and cannot be broken down into simpler substances by means of a chemical change. COMPOUNDS- are pure substances that are made up of two or more elements chemically combined together. Compounds can be broken down into elements again by chemical means ...
Chapter 11 Chemical Reactions
... For some, we will be able to: c) predict whether or not they will happen at all. ...
... For some, we will be able to: c) predict whether or not they will happen at all. ...
PAP Chemistry - Fall Final Review
... 6. What did Rutherford discover from the Gold Foil Experiment – p.72 The nucleus and that the atom was mostly empty space 7. When is a bright-line spectrum produced by an atom? IE – How does an atom give off color (especially when burned)? The resting state or the ground state is when the electron i ...
... 6. What did Rutherford discover from the Gold Foil Experiment – p.72 The nucleus and that the atom was mostly empty space 7. When is a bright-line spectrum produced by an atom? IE – How does an atom give off color (especially when burned)? The resting state or the ground state is when the electron i ...
Practice Bypass Answers
... H2O – water is a polar covalent compound because two lone pairs on the oxygen and two bonding pairs between oxygen and hydrogen atoms repel each other causing water molecule to obtain bent shape; also, oxygen has significantly higher electronegativity (attraction for shared electrons) than hydrogen ...
... H2O – water is a polar covalent compound because two lone pairs on the oxygen and two bonding pairs between oxygen and hydrogen atoms repel each other causing water molecule to obtain bent shape; also, oxygen has significantly higher electronegativity (attraction for shared electrons) than hydrogen ...
Chapter 2
... Bonds are both made and broken (also called displacement reactions). Example ATP transfers its terminal phosphate group to glucose to form glucose-phosphate. ...
... Bonds are both made and broken (also called displacement reactions). Example ATP transfers its terminal phosphate group to glucose to form glucose-phosphate. ...
Chemistry Unit Test Review
... Students added liver to hydrogen peroxide. The mass of the substance after the reaction took place was less than the mass before. What might have accounted for the mass being different after? ...
... Students added liver to hydrogen peroxide. The mass of the substance after the reaction took place was less than the mass before. What might have accounted for the mass being different after? ...
Notes on Atomic Structure atoms
... Atomic Theory Cont’d Atoms of one element can combine with atoms of other elements to form compounds. A given compound always has the same relative numbers and types of atoms. Atoms are indivisible in chemical processes. That is, atoms are not created or destroyed in chemical reactions. A chemi ...
... Atomic Theory Cont’d Atoms of one element can combine with atoms of other elements to form compounds. A given compound always has the same relative numbers and types of atoms. Atoms are indivisible in chemical processes. That is, atoms are not created or destroyed in chemical reactions. A chemi ...
FREE Sample Here
... 29) During ionization, water molecules disrupt the ionic bonds of a solute and a mixture of ions is produced. These ions are called A) anions. B) dissociates. C) anti-ions. D) electrolytes. E) cations. ...
... 29) During ionization, water molecules disrupt the ionic bonds of a solute and a mixture of ions is produced. These ions are called A) anions. B) dissociates. C) anti-ions. D) electrolytes. E) cations. ...
Exam #2
... Given that Hf for MgCl2 is -641.6 kJ/mol and Hf for KCl is -435.9 kJ/mol, calculate Hrxn for the following equation: ...
... Given that Hf for MgCl2 is -641.6 kJ/mol and Hf for KCl is -435.9 kJ/mol, calculate Hrxn for the following equation: ...
Practice exam - Dynamic Science
... 3 marks g) Why is aluminium used extensively for kitchen utensils such as pots and frying pans but not for warships? ______________________________________________________________________ ______________________________________________________________________ _________________________________________ ...
... 3 marks g) Why is aluminium used extensively for kitchen utensils such as pots and frying pans but not for warships? ______________________________________________________________________ ______________________________________________________________________ _________________________________________ ...
Semester Exam Practice Questions
... b. All of the relationships in a chemical reaction can be expressed as mass ratios. c. Atoms and molecules are extremely small. d. Reactions occur one atom at a time. 51. Which of the following could be used as a conversion factor in converting from kilograms to grams? a. 1000g c. 1kg / 1000g b. 100 ...
... b. All of the relationships in a chemical reaction can be expressed as mass ratios. c. Atoms and molecules are extremely small. d. Reactions occur one atom at a time. 51. Which of the following could be used as a conversion factor in converting from kilograms to grams? a. 1000g c. 1kg / 1000g b. 100 ...
Chem Regents 2015 A Few Things
... Oxidizing agents = oxidize something else, get reduced Reducing agents = reduce something else, get oxidized ...
... Oxidizing agents = oxidize something else, get reduced Reducing agents = reduce something else, get oxidized ...
Chapter-2-Human-Chemistry
... needed to disrupt and rearrange the stable electron configuration 2.Concentration and Temperature are main factors in influencing chemical reactions ...
... needed to disrupt and rearrange the stable electron configuration 2.Concentration and Temperature are main factors in influencing chemical reactions ...
Chapters 6, 8
... Electronegativity and the Covalent Bond When non-metals react among themselves, the resulting compound is a molecular compound. Each reacting atom delivers its valence electrons to a pool of electrons, and the resulting compound is made by sharing these electrons among all atoms in the compound. Ea ...
... Electronegativity and the Covalent Bond When non-metals react among themselves, the resulting compound is a molecular compound. Each reacting atom delivers its valence electrons to a pool of electrons, and the resulting compound is made by sharing these electrons among all atoms in the compound. Ea ...
Final Preparation
... ____C3H8 + ____O2 ____CO2 + ____H2O A. 5.00 B. 10.0 C. 15.0 D. 25.0 69. What is mutarotation? A. The conversion of a D-monosaccharide into an L-monosaccharide. B. The conversion of α-D-galactose into β-D-galactose C. The conversion of a pyranose into a furanose. D. The conversion of an aldose into a ...
... ____C3H8 + ____O2 ____CO2 + ____H2O A. 5.00 B. 10.0 C. 15.0 D. 25.0 69. What is mutarotation? A. The conversion of a D-monosaccharide into an L-monosaccharide. B. The conversion of α-D-galactose into β-D-galactose C. The conversion of a pyranose into a furanose. D. The conversion of an aldose into a ...
Reaction types and Stoichiometry
... 19. Which of the following is the balanced chemical equation for the reaction shown above? A Al + H2SO4 Al2(SO4)3 + H2 B 2Al + 3H2SO4 Al2(SO4)3 + 3H2 _ C 2Al + 3H2SO4 Al2(SO4)3 + H2 D 2Al + H2SO4 Al2(SO4)3 + H2 20. Which of these is the general formula for a double-replacement reaction? A B ...
... 19. Which of the following is the balanced chemical equation for the reaction shown above? A Al + H2SO4 Al2(SO4)3 + H2 B 2Al + 3H2SO4 Al2(SO4)3 + 3H2 _ C 2Al + 3H2SO4 Al2(SO4)3 + H2 D 2Al + H2SO4 Al2(SO4)3 + H2 20. Which of these is the general formula for a double-replacement reaction? A B ...
o C
... Even "concentrated" acids and bases are solutions containing water: Concentrated HCl is 12 M Concentrated H2SO4 is 18 M ...
... Even "concentrated" acids and bases are solutions containing water: Concentrated HCl is 12 M Concentrated H2SO4 is 18 M ...
chemical reactions
... that, in a chemical reaction, matter is not created or destroyed; it stays the same ...
... that, in a chemical reaction, matter is not created or destroyed; it stays the same ...
File - LSAmockscience
... For example: A + B AB 2H2 + O2 2H2O 2 or more simpler substances one complex substance ...
... For example: A + B AB 2H2 + O2 2H2O 2 or more simpler substances one complex substance ...
activity series
... 2. A chemical reaction must account for every atom that is used. This is an application of the Law of Conservation of Matter, which states that in a chemical reaction atoms are neither created nor destroyed. ...
... 2. A chemical reaction must account for every atom that is used. This is an application of the Law of Conservation of Matter, which states that in a chemical reaction atoms are neither created nor destroyed. ...
chem 100 class notes - Louisiana Tech University
... Acids: Acids are compounds that increase the hydrogen ion concentration when dissolved in water. They usually have at least one removable hydrogen atom attached to an oxygen atom. These hydrogen are called acidic hydrogen because they come out as H+ or protons to give an acidic pH (< 7) for the solu ...
... Acids: Acids are compounds that increase the hydrogen ion concentration when dissolved in water. They usually have at least one removable hydrogen atom attached to an oxygen atom. These hydrogen are called acidic hydrogen because they come out as H+ or protons to give an acidic pH (< 7) for the solu ...
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.