CHEMISTRY CONTENT STANDARDS FOR

PERIODIC ASSESSMENT #2

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Items

1aStudents know how to relate the position of an element in the periodic table to its atomic number and atomic mass.

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1cStudents know how to use the periodic table to identify alkali metals, alkaline earth metals and transition metals, trends in ionization energy, electronegativity, and the relative sizes of ions and atoms.

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1gStudents know how to relate the position of an element in the periodic table to its quantum electron configuration and to its reactivity with other elements in the table.

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3cStudents know one mole equals 6.02 x 1023 particles (atoms or molecules).

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3dStudents know how to determine the molar mass of a molecule from its chemical formula and a table of atomic masses and how to convert the mass of a molecular substance to moles, number of particles, or volume of gas at standard temperature and pressure.

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3eStudents know how to calculate the masses of reactants and products in a chemical reaction from the mass of one of the reactants or products and the relevant atomic masses.

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3gStudents know how to identify reactions that involve oxidation and reduction and how to balance oxidation-reduction reactions.

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4aStudents know the random motion of molecules and their collisions with a surface create the observable pressure on that surface.

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4bStudents know the random motion of molecules explains the diffusion of gases.

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4cStudents know how to apply the gas laws to relations between the pressure, temperature, and volume of any amount of an ideal gas or any mixture of ideal gases.

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4dStudents know the values and meanings of standard temperature and pressure (STP).

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4eStudents know how to convert between the Celsius and Kelvin temperature scales.

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4gStudents know how to solve problems by using the ideal gas law in the form PV = nRT.

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5aStudents know the observable properties of acids, bases, and salt solutions.

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5bStudents know acids are hydrogen-ion-donating and bases are hydrogen-ion-accepting substances.

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5dStudents know how to use the pH scale to characterize acid and base solutions.

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5gStudents know buffers stabilize pH in acid-base reactions.

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6aStudents know the definitions of solute and solvent.

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6bStudents know how to describe the dissolving process at the molecular level by using the concept of random molecular motion.

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6cStudents know temperature, pressure, and surface area affect the dissolving process.

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6dStudents know how to calculate the concentration of a solute in terms of grams per liter, molarity, parts per million, and percent composition.

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6eStudents know the relationship between the molality of a solute in a solution and the solution's depressed freezing point or elevated boiling point.

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9aStudents know how to use LeChatelier's principle to predict the effect of changes in concentration, temperature, and pressure.

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9bStudents know equilibrium is established when forward and reverse reaction rates are equal.

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MULTIPLE CHOICE ITEMS

30

CONSTRUCTED RESPONSE ITEM

4pts

6cStudents know temperature, pressure, and surface area affect the dissolving process.