Podcast
Questions and Answers
What is the role of valence electrons in chemical bonding?
What is the role of valence electrons in chemical bonding?
- They determine the atomic mass of an element.
- They are involved in the grading of elements on the periodic table.
- They are responsible for forming covalent bonds. (correct)
- They are essential for identifying the element's symbol.
Nonmetals typically have high electrical and thermal conductivity.
Nonmetals typically have high electrical and thermal conductivity.
False (B)
What are the three subatomic particles in an atom?
What are the three subatomic particles in an atom?
Protons, neutrons, electrons
The number of __________ in an atom determines its element.
The number of __________ in an atom determines its element.
Match the following types of elements with their characteristics:
Match the following types of elements with their characteristics:
Which of the following is NOT a property of metalloids?
Which of the following is NOT a property of metalloids?
Covalent bonds involve the sharing of electrons between atoms.
Covalent bonds involve the sharing of electrons between atoms.
What distinguishes a covalent bond from an ionic bond?
What distinguishes a covalent bond from an ionic bond?
Which of the following is a characteristic of a solution?
Which of the following is a characteristic of a solution?
A chemical change involves the formation of new substances with different properties.
A chemical change involves the formation of new substances with different properties.
What is an example of an exothermic reaction?
What is an example of an exothermic reaction?
In a __________ reaction, the reactants combine to form a single product.
In a __________ reaction, the reactants combine to form a single product.
Match the following terms with their definitions:
Match the following terms with their definitions:
Which of the following best describes an endothermic reaction?
Which of the following best describes an endothermic reaction?
The Law of Conservation of Mass states that mass can be created or destroyed in a chemical reaction.
The Law of Conservation of Mass states that mass can be created or destroyed in a chemical reaction.
What evidence can indicate that a chemical change has occurred?
What evidence can indicate that a chemical change has occurred?
What is the primary difference between speed and velocity?
What is the primary difference between speed and velocity?
Balanced forces always result in a change in motion.
Balanced forces always result in a change in motion.
Explain how the law of conservation of mass applies to chemical equations.
Explain how the law of conservation of mass applies to chemical equations.
The force that requires physical contact between objects is known as a __________ force.
The force that requires physical contact between objects is known as a __________ force.
Which of the following is an example of an unbalanced force?
Which of the following is an example of an unbalanced force?
An object in motion will stay in motion unless acted on by a net force.
An object in motion will stay in motion unless acted on by a net force.
____________ is a measure of how quickly an object covers distance.
____________ is a measure of how quickly an object covers distance.
Flashcards
Proton
Proton
The subatomic particle located in the nucleus of an atom with a positive charge of +1.
Nucleus
Nucleus
The positively charged center of an atom, containing protons and neutrons.
Neutron
Neutron
The subatomic particle located in the nucleus of an atom with no charge.
Electron
Electron
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Atomic Number
Atomic Number
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Atomic Mass
Atomic Mass
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Period
Period
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Group
Group
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Mixture
Mixture
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Solution
Solution
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Physical Change
Physical Change
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Chemical Change
Chemical Change
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Reactant
Reactant
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Product
Product
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Exothermic Reaction
Exothermic Reaction
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Endothermic Reaction
Endothermic Reaction
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Reference Point
Reference Point
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Motion
Motion
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Net Force
Net Force
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Contact Forces
Contact Forces
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Non-Contact Forces
Non-Contact Forces
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Speed
Speed
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Velocity
Velocity
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Acceleration
Acceleration
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Study Notes
Semester 1 Exam Study Guide
- Exam review week is January 12th to 16th, 2025.
- Topics covered include: Atoms and the Periodic Table, Chemical Reactions, and Forces and Motion.
Topic 1: Atoms and the Periodic Table
- Lesson 2: The Periodic Table
- Objective: Locate elements on the periodic table, identify their properties.
- Key concepts: Properties of protons, neutrons, and electrons; using the periodic table to find information about elements (atomic number, atomic mass, element's symbol, number of protons & electrons); groups and periods in the periodic table.
Topic 2: Chemical Reactions
- Lesson 1: Mixtures & Solutions
- Objective: Define mixtures and solutions, give examples.
- Key concepts: Vocabulary (mixture, colloid, suspension, solution).
- Lesson 2: Chemical Change
- Objective: Conclude whether a change in matter is physical or chemical.
- Key concepts: Vocabulary (reactant, product, exothermic reaction, endothermic reaction); identifying physical or chemical changes; energy changes in reactions (exothermic and endothermic examples).
- Lesson 3: Modeling Chemical Reactions
- Objective: Interpret chemical reactions, compare reaction types (synthesis, decomposition, replacement), use chemical equations to model mass conservation.
- Key concepts: Vocabulary (law of conservation of mass); types of chemical reactions; identifying reactants and products.
Topic 3: Forces and Motion
- Lesson 1: Describing Motion and Forces
- Objective: Explain how balanced and unbalanced forces affect motion, incorporating reference points and relative motion.
- Key concepts: Vocabulary (reference point, motion, net force); balanced/unbalanced forces; critical thinking questions on motion, forces, and reference points; contact vs. non-contact forces.
- Lesson 2: Speed, Velocity, and Acceleration
- Objective: Use text evidence and real-life examples to compare and contrast speed, velocity, and acceleration.
- Key concepts: Vocabulary (speed, velocity, acceleration); critical thinking questions on similarities/differences between speed and velocity.
- Lesson 3: Newton's Laws of Motion
- Objective: Define Newton's Laws of Motion and apply them in real-life scenarios.
- Key concepts: Vocabulary (Newton's Laws of Motion); analyze the difference between balanced forces and action-reaction forces; applying concepts to real-life scenarios
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Description
Prepare for your Semester 1 Exam with this comprehensive study guide covering Atoms and the Periodic Table, Chemical Reactions, and Forces and Motion. Each topic includes key concepts and objectives to help you understand the material better. Make sure to review these essential topics before your exam from January 12th to 16th, 2025.
