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CHEM 1020 FINAL EXAM| 184 QUESTIONS AND ANSWERS| COMPLETE SOLUTIONS|2023/2024 What is a major difference between organic and inorganic compounds? Correct answer organic contain carbon What is the reason why there are so many organic compounds? Correct answer carbon atoms can form stable covalent bonds with other carbon atoms The vast number of organic compounds is due to the unique chemistry of carbon. This chemistry involves correct answer formation of long chains& isomerism Which a...

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Which of the following affects the activation energy of a reaction? correct answer: presence of a catalyst A reaction has an activation energy of 195.0 kJ/mol. When the temperature is increased from 200.°C to 220.°C, the rate constant will increase by a factor of correct answer: 7.5 Reaction intermediates differ from activated complexes in that correct answer: they are molecules with normal bonds rather than partial bonds and can occasionally be isolated A transition state is a spe...

An _____ property depends upon the size of the sample correct answer: extensive Density is expressed in correct answer: grams/mL In the density lab experiment, we learned how to correct answer: find the volume of an unknown sample Density can be found by correct answer: a direct measurment (g/mL) In the density lab experiment, which balance did we use? correct answer: analytical, semi-analytical, triple beam Which of the follow properties will not be studied in this experimen...

For the reaction F2(g) ⇌ 2 F(g), the equilibrium constant at 223 °C is 7.3 x 10-13. If a sample of F2 is heated to 223 °C and allowed to reach equilibrium correct answer: nearly all of F2 will remain unreacted, with a very small amount of F present At equilibrium correct answer: the rate of the forward reaction is equal to the rate of the reverse reaction and the concentration of the reactants and products can be very different For the reaction 2 BrCl(g) ⇌ Br2(g) + Cl2(g), the equi...

Which reacts more rapidly, ionic/covalent solutes? correct answer: ionic An increase of concentration of either or both reactants increases the rate of reaction due to what? (molec. collisions) correct answer: an increase in # of molecular collisions The surface area of a solid reactant may be increased by what? correct answer: grinding it up with a mortar and pestle Rate of reaction doubles as the temp. of a reaction system goes up by how many degrees? correct answer: 10 degrees C ...

A hydrogen bond is characterized by correct answer: the highly concentrated partial charge between an H atom and F, O, or N atoms Which of the following exhibits hydrogen bonding?CH3OH,HCl,CH2O, HCN correct answer: CH3OH An adhesive force correct answer: is the result of the intermolecular forces that attract different molecules together An Intermolecular Force correct answer: is the result of the intermolecular forces that attract identical molecules Liquids with high surface te...