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Understanding the Bohr Model
In this Bohr model instructional activity, learners read about Neils Bohr and the model he proposed of the atom. Students answer nine questions about his theory that electrons travel in orbitals and give off energy when they are excited.
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Titration
In this titration worksheet, high schoolers read about titrations or neutralization reactions used to determine the concentration of acids or bases. They are given sample problems used to find the concentrations of acids or bases....
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Converting among Units
In this conversion instructional activity, student use the factor-label method or unit analysis method to convert given measurements from one unit to another unit.
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Empirical Formulas
In this empirical formulas instructional activity, learners read about determining empirical formulas from chemical formulas. They determine the empirical formula given ten molecular formulas. They also find the molecular formulas given...
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Formula Mass
In this formula mass worksheet, high schoolers read about molecular substances and their formula masses. They find the formula masses for six compounds using the atomic masses of its elements.
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Formulas from Masses
In this mass worksheet, students determine the percentage composition of given compounds. Students write the empirical formula from the percentage composition. This worksheet has 5 problems to solve.
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WS 1.0 Math Skills Update
In this math skills worksheet, students find percentages, they convert from ordinary notation to scientific notation, they convert from scientific notation to ordinary notation and they manipulate algebraic expressions.
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Identifying Reaction Types
In this reactions worksheet, students are given nine chemical reactions to identify as single replacement, double replacement, synthesis or decomposition reactions.
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Water: The Neutral Substance
In this water worksheet, students read about hydrogen bonds in water and the differences in electronegativity between the oxygen atom and the two hydrogen atoms in water. Students answer four questions about the structure of water and...
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Neutralization Reactions
In this neutralization reaction worksheet, students read about how neutralization reactions are double replacement reactions in water. They complete five questions about neutralization reactions including completing five reactions and...
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Analyzing Oxidation-Reduction Reactions
In this oxidation-reduction reactions worksheet, students read about reactions where elements gain and lose electrons. When elements gain electrons they are reduced and when the lose electrons the elements are oxidized. They are given...
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Extracting Oxygen from Moon Rocks
In this extracting oxygen from moon rocks worksheet, students read about the need for oxygen for lunar colonists. Students solve 2 problems about the lunar mineral ilmenite which contains oxygen and other elements. They find the molar...
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Avoiding Carbon Dioxide Emissions from Burning Fossil Fuels
Young scholars calculate stoichiometrically the amount of carbon dioxide that would be emitted from burning a mole of varios alkanes that comprise fossile fuels. If the energy released from burning a mole of these alkanes is known, then...
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Honors-Acid and Base Properties Homework
In this acid and base activity, high schoolers answer 8 questions about Arrhenius, Bronsted-Lowry, and Lewis bases. They determine Bronsted-Lowry conjugate acid-base pairs and they identify compounds and solutions as acids, bases or...
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Early Atomic Theory Homework
In this early atomic theory worksheet, students answer 4 questions about the Law of Definite Proportions, the Law of Conservation of Mass and Dalton's Laws. Students are given 5 statements to determine if each true statement supports or...
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Kinetic Energy
Students are able to solve kinetic energy problems. They are introduced to kinetic energy. Students are shown examples of how to solve kinetic energy problems using the formula: Velocity= Distance/Time.
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Chemical Composition of American Coins
High schoolers investigate the chemical composition of pennies dated 1983 or later. In this chemical composition of American coins lesson plan, students scratch the surface of the penny to expose the zinc core. They put the penny in...
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Ionic Chemical Formulas Days 1 & 2
Young scholars study polyatomic ions and write binary and ternary ionic chemical formulas. They explore putting together different monatomic ions and coming up with as many chemical formulas as possible. They play a game similar to...
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A Fine Mess
In this enthalpy and entropy worksheet, high schoolers read about the differences between enthalpy and entropy and answer three critical thinking questions about the reading.
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PV=nRT=Bang!
In this ideal gas law learning exercise, students watch a demonstration using liquid nitrogen, a plastic 2 liter bottle and a garbage can of water that excites students to use the ideal gas law to solve problems. Students analyze the...
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Educational Subjects
In this interactive vocabulary worksheet, students read the description of educational subjects and select the subject which the sentence is describing. There are 10 questions to complete.
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Solutions Review
In this solutions worksheet, students review the properties of solutions, the polarity of molecules, molarity, and solubility curves. This worksheet has 8 short answer questions and 15 problems to solve.
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Chemical Equilibrium
In this chemical equilibrium learning exercise, students review hydration, dissociation, and colligative properties. Students also review Le Chatelier's principle. This learning exercise has 15 short answer questions and 12 problems to...
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Types of Chemical Reactions
Students conduct labs to gain an overview of chemical reactions. They observe examples of synthesis, decomposition, single displacement and double displacement reactions. They identify certain products by the use of litmus and splint tests.
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