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Subject Area - 3:
Science and Technology and Engineering Education
Science and Technology and Engineering Education
- Standard Area - 3.2: Physical Sciences: Chemistry and Physics
- Organizing Category - 3.2.A: Chemistry
- Grade Level - 3.2.10.A: GRADE 10
Standard - 3.2.10.A2
Compare and contrast different bond types that result in the formation of molecules and compounds.
Explain why compounds are composed of integer ratios of elements.
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Assessment Anchor - CHEM.A.1 Properties and Classification of Matter
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Anchor Descriptor - CHEM.A.1.1
Identify and describe how observable and measurable properties can be used to classify and describe matter and energy.
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Eligible Content - CHEM.A.1.1.1 Classify physical or chemical changes within a system in terms of matter and/or energy.
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Eligible Content - CHEM.A.1.1.2 Classify observations as qualitative and/or quantitative.
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Eligible Content - CHEM.A.1.1.3 Utilize significant figures to communicate the uncertainty in a quantitative observation.
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Eligible Content - CHEM.A.1.1.4 Relate the physical properties of matter to its atomic or molecular structure.
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Eligible Content - CHEM.A.1.1.5 Apply a systematic set of rules (IUPAC) for naming compounds and writing chemical formulas (e.g., binary covalent, binary ionic, ionic compounds containing polyatomic ions).
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Anchor Descriptor - CHEM.A.1.2 Compare the properties of mixtures.
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Eligible Content - CHEM.A.1.2.1 Compare properties of solutions containing ionic or molecular solutes (e.g., dissolving, dissociating).
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Eligible Content - CHEM.A.1.2.2 Differentiate between homogeneous and heterogeneous mixtures (e.g., how such mixtures can be separated).
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Eligible Content - CHEM.A.1.2.3 Describe how factors (e.g., temperature, concentration, surface area) can affect solubility.
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Eligible Content - CHEM.A.1.2.4 Describe various ways that concentration can be expressed and calculated (e.g., molarity, percent by mass, percent by volume).
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Eligible Content - CHEM.A.1.2.5 Describe how chemical bonding can affect whether a substance dissolves in a given liquid.
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Assessment Anchor - CHEM.B.1 The Mole and Chemical Bonding
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Anchor Descriptor - CHEM.B.1.1 Explain how the mole is a fundamental unit of chemistry.
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Eligible Content - CHEM.B.1.1.1 Apply the mole concept to representative particles (e.g., counting, determining mass of atoms, ions, molecules, and/or formula units).
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Anchor Descriptor - CHEM.B.1.2 Apply the mole concept to the composition of matter.
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Eligible Content - CHEM.B.1.2.1 Determine the empirical and molecular formulas of compounds.
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Eligible Content - CHEM.B.1.2.2 Apply the law of definite proportions to the classification of elements and compounds as pure substances.
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Eligible Content - CHEM.B.1.2.3 Relate the percent composition and mass of each element present in a compound.
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Anchor Descriptor - CHEM.B.1.3 Explain how atoms form chemical bonds.
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Eligible Content - CHEM.B.1.3.1 Explain how atoms combine to form compounds through ionic and covalent bonding.
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Eligible Content - CHEM.B.1.3.2 Classify a bond as being polar covalent, non‐polar covalent, or ionic.
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Eligible Content - CHEM.B.1.3.3 Use illustrations to predict the polarity of a molecule.
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Anchor Descriptor - CHEM.B.1.4 Explain how models can be used to represent bonding.
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Eligible Content - CHEM.B.1.4.1 Recognize and describe different types of models that can be used to illustrate the bonds that hold atoms together in a compound (e.g., computer models, ball‐and‐stick models, graphical models, solid‐sphere models, structural formulas, skeletal formulas, Lewis dot structures).
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Eligible Content - CHEM.B.1.4.2 Utilize Lewis dot structures to predict the structure and bonding in simple compounds.
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