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What’s Trending with the Elements?

This resource, aligned with Chemistry TEKS (5)(C), provides alternative or additional tier-one learning options for students using the periodic table to identify and explain trends.

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Converting Between Measurement Systems

Given a real-world situation with measurements in either metric/SI or customary units, the student will solve a problem requiring them to convert from one system to the other.

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The Bohr Model

Students will understand Bohr’s experimental design and conclusions that lead to the development of his model of the atom, as well as the limitations of his model.

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Valence Shell Electron Pair Repulsion

Given illustrations or descriptions, students will predict the shape of molecules based upon the extent of the electron pair electrostatic repulsion.

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Chemical Bonding: Metallic Bonds

Given scenarios or diagrams, students will describe the nature of metallic bonding and explain properties such as thermal and electrical conductivity, malleability, and ductility of metals.

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Electron Configuration

Given descriptors, diagrams, and chemical symbols, students will use the periodic table to determine the electron configuration of neutral atoms.

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Nomenclature: Covalent Compounds

Given descriptions, diagrams, or scenarios, students will write and name the chemical formulas of binary covalent compounds.

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Ionic Bonds: Electron Dot Formulas

Given descriptions, diagrams, scenarios, or chemical symbols, students will model ionic bonds using electron dot formulas.

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Moles and Molar Mass

Given descriptions or chemical formula of a substance, students will use the concept of a mole to relate atomic mass to molar mass.

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Types of Solutions: Saturated, Supersaturated, or Unsaturated

Given scenarios, graphs, diagrams, or illustrations, the student will determine the type of solution such as saturated, supersaturated, or unsaturated.

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Evaluating Methods of Sampling from a Set of Data

Given a problem situation, the student will evaluate a method of sampling to determine the validity of an inference made from the set of data.

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Using Multiplication by a Constant Factor

Given problems involving proportional relationships, the student will use multiplication by a constant factor to solve the problems.

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Predicting, Finding, and Justifying Data from a Table

Given data in table form, the student will use the data table to interpret solutions to problems.

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Covalent Bonding: Electron Dot Diagrams

Given descriptions, diagrams, scenarios, or chemical symbols, students will model covalent bonds using electron dot formula (Lewis structures).

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Forms of Energy

Given diagrams, illustrations, or descriptions, students will identify the types of energy.

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Law of Conservation of Energy: Heat Transfer

Given illustrations, scenarios, descriptions, and/or diagrams, students will demonstrate understanding of heat transfer.

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Thermochemical Equations

Given descriptions, diagrams, scenarios, or chemical symbols, students will calculate the energy changes and identify exothermic and endothermic reactions.

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Calorimetry

Given scenarios, illustrations, or descriptions, students will identify the process of calorimetry and calculate the heat of a chemical process.

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Water

Given scenarios, descriptions, or illustrations, the student will determine the properties of water that affect chemical and biological systems.

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Making Solutions

Given graphs, scenarios, illustrations, or descriptions, the student will determine how different processes affect solubility in aqueous solutions.