National 5 Chemistry Prelim Revision 1
... (ii) Another homologous series are the alcohols. Draw the shortened structural formula of ethanol. ...
... (ii) Another homologous series are the alcohols. Draw the shortened structural formula of ethanol. ...
Chemistry 21 A - El Camino College
... 9. a) endothermic reaction is ___________________________________________________________________ b) exothermic reaction is ___________________________________________________________________ 10. The percentage yield is _____________________________________________________________________ __________ ...
... 9. a) endothermic reaction is ___________________________________________________________________ b) exothermic reaction is ___________________________________________________________________ 10. The percentage yield is _____________________________________________________________________ __________ ...
std 8 9 reviewanswers
... 9. A catalyst can speed up the rate of a given chemical reaction by A increasing the equilibrium constant in favor of products. B lowering the activation energy required for the reaction to occur. C raising the temperature at which the reaction occurs. D increasing the pressure of reactants, thus fa ...
... 9. A catalyst can speed up the rate of a given chemical reaction by A increasing the equilibrium constant in favor of products. B lowering the activation energy required for the reaction to occur. C raising the temperature at which the reaction occurs. D increasing the pressure of reactants, thus fa ...
Chemical Reactions
... The limiting reactant is the reactant that determines the maximum amount of product that is formed. The limiting reactant will be completely used up in a reaction. This makes the reaction stop. The other reactant will have some unchanged so it is said to be the excess reactant. For example, if you n ...
... The limiting reactant is the reactant that determines the maximum amount of product that is formed. The limiting reactant will be completely used up in a reaction. This makes the reaction stop. The other reactant will have some unchanged so it is said to be the excess reactant. For example, if you n ...
Tentative exam questions Food Chemistry - e
... 1. Point out the stages of autoxidation of lipids. 2. Oxygen in which state is responsible for beginning of autoxidation reactions of lipids? 3. At which value of water activity lipid autoxidation has the lowest speed? 4. Give the names of two methods for measuring lipid oxidation. 5. Give the name ...
... 1. Point out the stages of autoxidation of lipids. 2. Oxygen in which state is responsible for beginning of autoxidation reactions of lipids? 3. At which value of water activity lipid autoxidation has the lowest speed? 4. Give the names of two methods for measuring lipid oxidation. 5. Give the name ...
國立嘉義大學95學年度
... (A) Because energy difference B is greater than energy difference C (B) Because energy difference B is greater than energy difference A (C) Because energy difference A is greater than energy difference C (D) Because energy difference B is greater than energy difference C plus energy difference A (E) ...
... (A) Because energy difference B is greater than energy difference C (B) Because energy difference B is greater than energy difference A (C) Because energy difference A is greater than energy difference C (D) Because energy difference B is greater than energy difference C plus energy difference A (E) ...
Introduction to Chemistry
... Ionic- Two elements bond by transferring electrons to create ions that attract together (+ is attracted to - after an electron is transferred) ...
... Ionic- Two elements bond by transferring electrons to create ions that attract together (+ is attracted to - after an electron is transferred) ...
Reactions (The Basics)
... How do you know that carbon dioxide was formed? Endothermic or exothermic? ...
... How do you know that carbon dioxide was formed? Endothermic or exothermic? ...
AP Chemistry Test Review
... 20) bond order calculation 21) odd # of electrons or 12 or 16 electrons are paramagnetic 22) determining the intermolecular forces in a molecule…L.D. dip-dip, H-bonds 23) interpreting phase diagrams 24) ∆T= K*m*i 25) determining the Rate Law based on lab data 26) graphs of 0, 1st, and 2nd order rate ...
... 20) bond order calculation 21) odd # of electrons or 12 or 16 electrons are paramagnetic 22) determining the intermolecular forces in a molecule…L.D. dip-dip, H-bonds 23) interpreting phase diagrams 24) ∆T= K*m*i 25) determining the Rate Law based on lab data 26) graphs of 0, 1st, and 2nd order rate ...
Chapter 16 Handout
... Some ____________________. and chemical changes can be reversed. For example ice to liquid water and back again. A double arrow ____________________.) is used to indicate a ____________________. reaction. We can use the idea that processes can be reversed to understand why some reactions reach an __ ...
... Some ____________________. and chemical changes can be reversed. For example ice to liquid water and back again. A double arrow ____________________.) is used to indicate a ____________________. reaction. We can use the idea that processes can be reversed to understand why some reactions reach an __ ...
Reactions Unit Plan
... Animations: Interactive simulations of Single Replacement Reactions (involves activity series) http://www.chem.iastate.edu/group/Greenbowe/sections/projectfolder/flashfiles/redox/ho me.html ...
... Animations: Interactive simulations of Single Replacement Reactions (involves activity series) http://www.chem.iastate.edu/group/Greenbowe/sections/projectfolder/flashfiles/redox/ho me.html ...
Snc2d Chapter 5 Practice Test
... b) In the diagram above, the Roman group number of P shows: c) The period number of P shows: d) Show a Bohr diagram above of P forming an ion, indicating beside your diagram the number of electrons gained or lost. Include the symbol with net charge and the name of the ion formed. e) With regard to i ...
... b) In the diagram above, the Roman group number of P shows: c) The period number of P shows: d) Show a Bohr diagram above of P forming an ion, indicating beside your diagram the number of electrons gained or lost. Include the symbol with net charge and the name of the ion formed. e) With regard to i ...
synthesis reaction
... A reaction in which electrons are transferred from one reactant to another is called an oxidation-reduction reaction. Which of the following takes place during a redox reaction? A: Electrons are both gained and lost. ...
... A reaction in which electrons are transferred from one reactant to another is called an oxidation-reduction reaction. Which of the following takes place during a redox reaction? A: Electrons are both gained and lost. ...
Dr. Ali Ebneshahidi
... - Hypotonic : solution with a lower osmotic pressure cells in hyportonic solution gain H2O and swell. - Isotonic : same tonicity - cell in isotonic solutions neither gain, nor lose H2O. ...
... - Hypotonic : solution with a lower osmotic pressure cells in hyportonic solution gain H2O and swell. - Isotonic : same tonicity - cell in isotonic solutions neither gain, nor lose H2O. ...
CHEMICAL REACTIONS
... ________ 16. Which binary compound decomposes to form K I2? a. KI2 c. K2I b. KI d. none of the above ________ 17. In order for the reaction Cu(s) 2AgNO3(aq) y Cu(NO3)2(aq) 2Ag(s) to occur, which of the following must be true? a. Cu must be above Ag in the activity series. b. Ag must be above C ...
... ________ 16. Which binary compound decomposes to form K I2? a. KI2 c. K2I b. KI d. none of the above ________ 17. In order for the reaction Cu(s) 2AgNO3(aq) y Cu(NO3)2(aq) 2Ag(s) to occur, which of the following must be true? a. Cu must be above Ag in the activity series. b. Ag must be above C ...
Chemical Equations and Reactions
... greater the activity is. • Metals: the greater the activity, the greater it loses electrons (to form cations) • Non-metals: the greater the activity, the greater it gains electrons (to form anions) • Activity series: a list of which elements a particular element can replace in a single replacement r ...
... greater the activity is. • Metals: the greater the activity, the greater it loses electrons (to form cations) • Non-metals: the greater the activity, the greater it gains electrons (to form anions) • Activity series: a list of which elements a particular element can replace in a single replacement r ...
Biochemistry I (CHE 418 / 5418)
... Iron reacts with a solution of copper sulfate producing iron sulfate and elemental copper. ...
... Iron reacts with a solution of copper sulfate producing iron sulfate and elemental copper. ...
Chapter 13 Notes
... free element so it is undergoing reduction. This is called an oxidation-reduction reaction or redox for short. Although this type of reaction is named for oxygen, many other elements undergo redox reactions with each other without oxygen. Electrons must simply be transferred from the substance that ...
... free element so it is undergoing reduction. This is called an oxidation-reduction reaction or redox for short. Although this type of reaction is named for oxygen, many other elements undergo redox reactions with each other without oxygen. Electrons must simply be transferred from the substance that ...
Chemical Reaction
... –Exothermic reactions require a smaller amount of activation energy than endothermic reactions ...
... –Exothermic reactions require a smaller amount of activation energy than endothermic reactions ...
chapters 16-17 test re
... 1. _______ A chemical reaction rate is defined as a specific amount of time per change in concentration of a reactant or product. 2. _______ The Atomic Theory states that atoms, ions, or molecules must collide in order to react provided that they have enough kinetic energy to form an activated compl ...
... 1. _______ A chemical reaction rate is defined as a specific amount of time per change in concentration of a reactant or product. 2. _______ The Atomic Theory states that atoms, ions, or molecules must collide in order to react provided that they have enough kinetic energy to form an activated compl ...
158KB - NZQA
... that the reaction lies to the products side as the larger the Kc or Q value, the greater the numerator (products). ...
... that the reaction lies to the products side as the larger the Kc or Q value, the greater the numerator (products). ...
Catalysis
Catalysis is the increase in the rate of a chemical reaction due to the participation of an additional substance called a catalyst. With a catalyst, reactions occur faster and require less activation energy. Because catalysts are not consumed in the catalyzed reaction, they can continue to catalyze the reaction of further quantities of reactant. Often only tiny amounts are required.