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GENERAL CHEMISTRY 2 (STEM GRADE 12) Name: Section: Score: Code # I. Modified True or False Directions: Write CHEMISTRY if the statement is correct, if otherwise, change the underlined words to make the statement correct. 1. At room temperature, water is colorless, ductile, and tasteless liquid. 2. The 3d postulate of KMT states that the amount of kinetic energy in a substance is related to its temperature. Increased temperature means greater speed. 3. The 5th postulate of KMT states that The amount of space between particles isrelated to the substance's state of matter. 4. When cooled, liquid slightly expands. 5. The water molecules in ice have more defined hexagonal arrangement. 6. In a solution, solute dissolves solvent. 7. Solvent is less than solute. 8. A solution that contains a large proportion of solute relative tothe solvent is called diluted.

GENERAL CHEMISTRY 2 (STEM GRADE 12) Name: Section: Score: Code # I. Modified True or False Directions: Write CHEMISTRY if the statement is correct, if otherwise, change the underlined words to make the statement correct. 1. At room temperature, water is colorless, ductile, and tasteless liquid. 2. The 3d postulate of KMT states that the amount of kinetic energy in a substance is related to its temperature. Increased temperature means greater speed. 3. The 5th postulate of KMT states that The amount of space between particles isrelated to the substance's state of matter. 4. When cooled, liquid slightly expands. 5. The water molecules in ice have more defined hexagonal arrangement. 6. In a solution, solute dissolves solvent. 7. Solvent is less than solute. 8. A solution that contains a large proportion of solute relative tothe solvent is called diluted.

Chemistry
Chemistry
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ISBN:9781305957404
Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
Publisher:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
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GENERAL CHEMISTRY 2 (STEM GRADE 12) Code # Name: Section: Score: I. Modified True or False Directions: Write CHEMISTRY if the statement is correct, if otherwise, change the underlined words to make the statement correct. 1. At room temperature, water is colorless, ductile, and tasteless liquid. 2. The 3rd postulate of KMT states that the amount of kinetic energy in a substance is related to its temperature.Increased temperature means greater speed. 3. The 5th postulate of KMT states that The amount of space between particles isrelated to the substance's state of matter. 4. When cooled, liquid slightly expands. 5. The water molecules in ice have more defined hexagonal arrangement. 6. In a solution, solute dissolves solvent. 7. Solvent is less than solute. 8. A solution that contains a large proportion of solute relative tothe solvent is called diluted. 9.The concentration of the solution is best described by mole fraction or molar mass. 10. Larger molarity values means more concentrated solution. 11. Molarity is the concentration of a solution expressed in moles of solute per kilogram of solvent. 12. Thermochemistry is a branch of thermodynamics which deals with the interconversion of energy between two forms: heat and power. 13. The First Law of Thermodynamics states that energy can be created or destroyed. 14. When a system absorbs heat it is called exothermic. 15. Heat is the transfer of thermal energy between two bodies that are at different temperatures and is not equal to thermal energy. II. Multiple Choice Directions: Choose the letter that corresponds to the correct answer. Write your answer on the space provided. 1. What happens to water molecules when cooled? A. The water molecules become excited. B. The water molecules slide past each other. C. The water molecules become fixed in position. D. The forces between molecules break. 2. Why is liquid difficult to compress? Because A. The particles of liquid move more freely compare to solid that slide past one another B. Liquid has definite volume but no definite shape C. A & B D. B only 3. Unlike liquid, why does solid do not flow? A. Because solid is heavier compare to liquid B. Because of the arrangement of the particles that are very close to each other C. Because solid has definite shape and volume D. Because solid slightly expands when heated 4. Which statement is true about water? A. It exhibits hydrogen bonding B. It dissolves nonpolar compounds C. Its solid phase is denser than its liquid phase D. A, B& C 5. Which is the weakest type of intermolecular force? A. dipole-dipole B. hydrogen bonding C. ion-dipole D. London dipersion force 6. Changes in enthalpy of an exothermic reaction is C. negative D. neutral A. Positive B. Constant 7. Which of the following physical processes is exothermic?
Transcribed Image Text:GENERAL CHEMISTRY 2 (STEM GRADE 12) Code # Name: Section: Score: I. Modified True or False Directions: Write CHEMISTRY if the statement is correct, if otherwise, change the underlined words to make the statement correct. 1. At room temperature, water is colorless, ductile, and tasteless liquid. 2. The 3rd postulate of KMT states that the amount of kinetic energy in a substance is related to its temperature.Increased temperature means greater speed. 3. The 5th postulate of KMT states that The amount of space between particles isrelated to the substance's state of matter. 4. When cooled, liquid slightly expands. 5. The water molecules in ice have more defined hexagonal arrangement. 6. In a solution, solute dissolves solvent. 7. Solvent is less than solute. 8. A solution that contains a large proportion of solute relative tothe solvent is called diluted. 9.The concentration of the solution is best described by mole fraction or molar mass. 10. Larger molarity values means more concentrated solution. 11. Molarity is the concentration of a solution expressed in moles of solute per kilogram of solvent. 12. Thermochemistry is a branch of thermodynamics which deals with the interconversion of energy between two forms: heat and power. 13. The First Law of Thermodynamics states that energy can be created or destroyed. 14. When a system absorbs heat it is called exothermic. 15. Heat is the transfer of thermal energy between two bodies that are at different temperatures and is not equal to thermal energy. II. Multiple Choice Directions: Choose the letter that corresponds to the correct answer. Write your answer on the space provided. 1. What happens to water molecules when cooled? A. The water molecules become excited. B. The water molecules slide past each other. C. The water molecules become fixed in position. D. The forces between molecules break. 2. Why is liquid difficult to compress? Because A. The particles of liquid move more freely compare to solid that slide past one another B. Liquid has definite volume but no definite shape C. A & B D. B only 3. Unlike liquid, why does solid do not flow? A. Because solid is heavier compare to liquid B. Because of the arrangement of the particles that are very close to each other C. Because solid has definite shape and volume D. Because solid slightly expands when heated 4. Which statement is true about water? A. It exhibits hydrogen bonding B. It dissolves nonpolar compounds C. Its solid phase is denser than its liquid phase D. A, B& C 5. Which is the weakest type of intermolecular force? A. dipole-dipole B. hydrogen bonding C. ion-dipole D. London dipersion force 6. Changes in enthalpy of an exothermic reaction is C. negative D. neutral A. Positive B. Constant 7. Which of the following physical processes is exothermic?
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