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Questions and Answers
What is the difference between a homogeneous and a heterogeneous mixture?
Matter can be classified as either an element or a compound.
True
What is the name of the group of elements in the periodic table that includes elements such as fluorine, chlorine, and iodine?
Halogens
The ion with a noble gas configuration is the ______________ ion.
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Match the following chemical reactions with their types:
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What is the empirical formula of a compound that has a molecular formula of C2H4?
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What is the oxidation number of the lead ion in the compound PbO?
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Electronegativity is a measure of an atom's ability to lose electrons.
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Study Notes
Chemistry 11 Exam Overview
- Exam consists of 40 multiple-choice questions, 3 parts (B, C, and D) with a total of 85 marks and a duration of 1.5 hours.
Matter and Mixtures
- Homogeneous mixtures: uniform composition throughout.
- Heterogeneous mixtures: non-uniform composition.
- Compounds: formed by chemical bonding between atoms.
- Substances: matter with a fixed composition.
Periodic Table
- Groups of the periodic table can be identified.
Ions and Electron Configuration
- Ions can have a noble gas configuration.
- Ion with 46 electrons has a specific configuration.
Chemical Equations
- Chemical equations can be balanced.
- Types of reactions: decomposition, others.
Empirical Formula and Molecular Weight
- Empirical formula can be determined.
- Molecular weight can be calculated.
- Formula for a salt is XBr, with X ion having 46 electrons.
Chemical Formulas and Naming
- Chemical formulas can be written.
- Compounds can be named using specific rules.
Atomic Radius and Polarity
- Atomic radius can be determined.
- Electronegativity and polarity can be determined.
Chemical Reactions
- Reactions can involve the loss or gain of electrons.
- Reaction types: combustion, others.
Ionic Bonding and Compounds
- Ionic compounds can be formed.
- Ionic bonding involves the transfer of electrons.
Molar Mass and Mol Constant
- Molar mass can be calculated.
- Molar constant is a specific value.
Stoichiometry
- Limiting reactant can be determined.
- Concentrations can be calculated.
###Lewis Structures
- Lewis structures can be drawn for ionic and covalent compounds.
- Compounds can be named using Lewis structures.
Net Ionic Equations
- Net ionic equations can be written.
- Full ionic equations can be written.
- Net molecular equations can be written.
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Description
Practice chemistry exam with 40 multiple-choice questions and problem-solving exercises covering topics such as mixtures, compounds, periodic table, chemical equations, and significant figures.
