SNC2D – Science 10 Tuesday April 26th, 2010 Mr. Sourlis and Mr
... 3. When a chemical reaction takes place, the total mass of the products is always a. Greater than the total mass of the reactants b. Less than the total mass of the reactants c. Equal to the total mass of the reactants d. Dependent on the type of reaction e. Impossible to determine 4. What is anothe ...
... 3. When a chemical reaction takes place, the total mass of the products is always a. Greater than the total mass of the reactants b. Less than the total mass of the reactants c. Equal to the total mass of the reactants d. Dependent on the type of reaction e. Impossible to determine 4. What is anothe ...
Ch 19 test_take-home
... 14) The thermodynamic quantity that expresses the degree of disorder in a system is __________. A) enthalpy B) internal energy C) bond energy D) entropy 15) For an isothermal process, ΔS = __________. A) q B) qrev/T C) qrev ...
... 14) The thermodynamic quantity that expresses the degree of disorder in a system is __________. A) enthalpy B) internal energy C) bond energy D) entropy 15) For an isothermal process, ΔS = __________. A) q B) qrev/T C) qrev ...
Reaction Rates/Chemical Kinetics
... Analyze: We are asked to write the equilibrium-constant expression for a reaction and to determine the value of Kc given the chemical equation and equilibrium constant for the reverse reaction. Plan: The equilibrium-constant expression is a quotient of products over reactants, each raised to a power ...
... Analyze: We are asked to write the equilibrium-constant expression for a reaction and to determine the value of Kc given the chemical equation and equilibrium constant for the reverse reaction. Plan: The equilibrium-constant expression is a quotient of products over reactants, each raised to a power ...
CHEMICAL REACTIONS
... (s) after the formula –solid Cu(s) (g) after the formula –gas H2 (g) (l) after the formula -liquid H2O(l) (aq) after the formula - dissolved in water, an aqueous solution. CaCl2 (aq) used after a product indicates a gas (same as (g)) O2 used after a product indicates a solid (same as (s)) CaCo3 ...
... (s) after the formula –solid Cu(s) (g) after the formula –gas H2 (g) (l) after the formula -liquid H2O(l) (aq) after the formula - dissolved in water, an aqueous solution. CaCl2 (aq) used after a product indicates a gas (same as (g)) O2 used after a product indicates a solid (same as (s)) CaCo3 ...
Chabot College
... 8. state electron configurations and orbital diagrams, and their relationship to placement on the periodic table; 9. name salts, common acids and binary molecular compounds by both systematic and common methods; 10. describe the mole concept and use it in various calculations such as amount conversi ...
... 8. state electron configurations and orbital diagrams, and their relationship to placement on the periodic table; 9. name salts, common acids and binary molecular compounds by both systematic and common methods; 10. describe the mole concept and use it in various calculations such as amount conversi ...
Class: 11 Subject: Chemistry Topic: Equilibrium No. of
... 10. Two moles of nitrogen and two moles of hydrogen are taken in a closed vessel of a five litre capacity and suitable conditions are provided for the reaction. When equilibrium is reached it is found that half a mole of nitrogen is used up. The equilibrium concentration of ammonia is A. 0.2 B. 0.4 ...
... 10. Two moles of nitrogen and two moles of hydrogen are taken in a closed vessel of a five litre capacity and suitable conditions are provided for the reaction. When equilibrium is reached it is found that half a mole of nitrogen is used up. The equilibrium concentration of ammonia is A. 0.2 B. 0.4 ...
Intro to Chemical Equations note
... type appearing on both sides Balance the elements one at a time by adding coefficients (the numbers in front) - save H and O until LAST! Check to make sure it is balanced. ...
... type appearing on both sides Balance the elements one at a time by adding coefficients (the numbers in front) - save H and O until LAST! Check to make sure it is balanced. ...
Reaction Stoichiometry
... We cannot simply add the total moles of all the reactants to decide which reactant mixture makes the most product. We must always think about how much product can be formed by using what we are given, and the ratio in the balanced equation. ...
... We cannot simply add the total moles of all the reactants to decide which reactant mixture makes the most product. We must always think about how much product can be formed by using what we are given, and the ratio in the balanced equation. ...
Chemistry Standard Outline
... SC6b. Collect data and calculate the amount of heat given off or taken in by chemical or physical processes. SC6c. Analyzing (both conceptually and quantitatively) flow of energy during change of state (phase). Teacher Note: The use of Gas Laws to achieve this standard is permissible, but not mandat ...
... SC6b. Collect data and calculate the amount of heat given off or taken in by chemical or physical processes. SC6c. Analyzing (both conceptually and quantitatively) flow of energy during change of state (phase). Teacher Note: The use of Gas Laws to achieve this standard is permissible, but not mandat ...
Unit 5 • What Do Atoms Look Like
... great examples of a Brønsted-Lowry acid and base. Arrhenius only dealt with aqueous solutions. When NH3 and HCl meet in the air, a proton (H+) is transferred from the HCl to the NH3. The two resulting ions immediately are attracted to each other to form the solid, NH4Cl(s) which we see as smoke. HCl ...
... great examples of a Brønsted-Lowry acid and base. Arrhenius only dealt with aqueous solutions. When NH3 and HCl meet in the air, a proton (H+) is transferred from the HCl to the NH3. The two resulting ions immediately are attracted to each other to form the solid, NH4Cl(s) which we see as smoke. HCl ...
Parameter Estimation for Reactor Models
... • Notice that the correlation between km and E is much reduced compared to k0 and E. • In fact, reporting confidence limits ...
... • Notice that the correlation between km and E is much reduced compared to k0 and E. • In fact, reporting confidence limits ...
Balancing Equations Notes
... 3. Multiply the coefficient of each element by the subscript of the element to count the atoms. Then list the number of atoms of each element on each side. 4. It is often easiest to start balancing with an element that appears only once on each side of the arrow. These elements must have the same c ...
... 3. Multiply the coefficient of each element by the subscript of the element to count the atoms. Then list the number of atoms of each element on each side. 4. It is often easiest to start balancing with an element that appears only once on each side of the arrow. These elements must have the same c ...
7.2 Writing Chemical Equations
... Description: “Iron reacts with oxygen to produce iron (III) oxide (rust)” Word Equation: iron + oxygen → iron (III) oxide Description: “Methane is burned in oxygen to produce carbon dioxide and water” Word Equation: methane + oxygen → carbon dioxide + water ...
... Description: “Iron reacts with oxygen to produce iron (III) oxide (rust)” Word Equation: iron + oxygen → iron (III) oxide Description: “Methane is burned in oxygen to produce carbon dioxide and water” Word Equation: methane + oxygen → carbon dioxide + water ...
Chemistry Standards Checklist
... a. Trace the source on any large disparity between estimated and calculated answers to problems. b. Consider possible effects of measurement errors on calculations. ...
... a. Trace the source on any large disparity between estimated and calculated answers to problems. b. Consider possible effects of measurement errors on calculations. ...
Yearly Plan for MYP 1 Science
... environment and that we cannot survive without them - recognizing common chemical reactions in our world - understanding what happens in a chemical change - noticing and identifying common chemicals we use in our everyday lives ...
... environment and that we cannot survive without them - recognizing common chemical reactions in our world - understanding what happens in a chemical change - noticing and identifying common chemicals we use in our everyday lives ...
Practice Exam I solutions
... The actual exam will be open textbook (and calculator) only. No notes, homework, workshop answers or this practice exam are to be used during the test. Remember to show all work for full credit, and to express all answers with the correct number of significant figures. Please circle your final answe ...
... The actual exam will be open textbook (and calculator) only. No notes, homework, workshop answers or this practice exam are to be used during the test. Remember to show all work for full credit, and to express all answers with the correct number of significant figures. Please circle your final answe ...
