1
State law of conservation of mass
State that mass is conserved in chemical reactions.
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Atoms and Molecules
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2
Verify law of conservation of mass
Plan or explain an activity to verify conservation of mass.
3
State law of constant proportions
Explain fixed composition in chemical compounds.
4
Explain Dalton atomic theory
Describe major postulates of Dalton atomic theory.
5
Differentiate atoms molecules elements and compounds
Compare basic chemical species using examples.
6
Differentiate molecule types
Distinguish molecules of elements and covalent compounds.
7
Differentiate ionic and covalent compounds
Compare compounds by bonding type and properties.
8
Differentiate cations and anions
Identify positive and negative ions from charge.
9
Calculate ion charge from atomic number
Use electronic configuration and valency to infer simple ion charge.
10
Write chemical formulae using valency
Write formulae of simple compounds using symbols and valencies.
11
Use scientific symbols and conventions
Apply correct notation while writing formulae and chemical species.
12
Differentiate molecular mass and formula unit mass
Distinguish mass calculations for molecules and ionic compounds.
13
Calculate molecular mass
Calculate molecular mass from atomic masses.
14
Calculate formula unit mass
Calculate formula unit mass of ionic compounds.
15
Draw electron dot structures
Represent atoms and simple molecules using electron dot diagrams.
16
Construct compound models
Build simple models to show atoms combining in fixed ratios.
17
Connect bonding to applications
Discuss useful applications of atoms, molecules and bonding in life.
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