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Questions and Answers
What are the three main subatomic particles?
What are the three main subatomic particles?
Protons, neutrons, and electrons
What is the electron configuration of oxygen?
What is the electron configuration of oxygen?
1s²2s²2p⁴
Which of the following periodic trends generally increases as you move down a group on the periodic table? (Select all that apply)
Which of the following periodic trends generally increases as you move down a group on the periodic table? (Select all that apply)
What type of chemical bond is formed between a metal and a nonmetal?
What type of chemical bond is formed between a metal and a nonmetal?
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Draw the Lewis dot diagram for water (H₂O).
Draw the Lewis dot diagram for water (H₂O).
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Write a balanced chemical equation for the reaction between sodium and chlorine.
Write a balanced chemical equation for the reaction between sodium and chlorine.
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What type of reaction involves the reaction between an acid and a base?
What type of reaction involves the reaction between an acid and a base?
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The ______ of a substance is the amount of substance present in a given volume.
The ______ of a substance is the amount of substance present in a given volume.
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What is the formula for calculating the number of moles (n) from mass (m) and molar mass (mm)?
What is the formula for calculating the number of moles (n) from mass (m) and molar mass (mm)?
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What is the name of the organic molecule with the formula CH₃CH₂CH₂CH₃?
What is the name of the organic molecule with the formula CH₃CH₂CH₂CH₃?
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Study Notes
Atomic Structure
- Atoms comprise protons, neutrons, and electrons.
- Electron shells (energy levels) are filled with electrons, with specific electron configurations.
- Electron configurations are crucial to understanding element properties.
Periodic Trends
- Atomic radius increases down a group and decreases across a period.
- Ionization energy generally increases across a period and decreases down a group.
- Electronegativity increases across a period and decreases down a group.
- Reactivity trends are related to electron configurations and periodic trends.
Chemical Bonding
- Ionic bonding involves electrostatic attraction between oppositely charged ions.
- Covalent bonding involves sharing of electrons between atoms.
- Metallic bonding involves the sharing of delocalized electrons in a structure of positive metal ions.
- Lewis dot diagrams represent electron sharing and bonding.
Chemical Equations and Reactions
- Balanced chemical equations represent chemical reactions, conserving mass.
- Criss-cross rule is used for writing ionic formulas.
- Common types of reactions include single/double displacement, Combustion, Neutralization, Acid-metal, and Acid-carbonate reactions.
Stoichiometry
- Moles are used to quantify the amount of substance.
- Mole formula (n=m/mm) is applied in calculations.
- Calculations involving concentration (C=n/V) are fundamental.
- Limiting reagents affect yield, leading to incomplete reactions.
Organic Chemistry
- Nomenclature of organic molecules is an important skill to name branched alkanes, alcohols, and haloalkanes.
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Description
This quiz covers fundamental concepts of atomic structure, including protons, neutrons, electrons, and electron configurations. It also explores periodic trends, chemical bonding types, and the representation of chemical reactions. Test your knowledge on how these topics are interconnected!
