What this deck covers
This deck focuses on Physical And Chemical Changes, giving you a quick way to review the definitions, rules, and examples that matter most for AP Chemistry.
AP Chemistry Flashcards: Physical And Chemical Changes
Study Physical And Chemical Changes in AP Chemistry with focused flashcards that help you recognize the idea, recall the key rule, and apply it in practice-style prompts.
AP Chemistry
Physical And Chemical Changes
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QUESTION
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Identify whether evaporating alcohol is a physical or chemical change.
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ANSWER
Physical change. Only state changes from liquid to gas.
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Flashcard 1: Identify whether evaporating alcohol is a physical or chemical change.
Answer: Physical change. Only state changes from liquid to gas.
Flashcard 2: Identify whether crushing a can is a physical or chemical change.
Answer: Physical change. Only shape changes, aluminum composition unchanged.
Flashcard 3: What is sublimation?
Answer: The transition of a substance from solid to gas without liquifying. Direct phase transition bypassing liquid phase.
Flashcard 4: Identify whether dissolving sugar in tea is a physical or chemical change.
Answer: Physical change. Sugar molecules disperse but remain unchanged.
Flashcard 5: What is a physical change?
Answer: A change affecting the form but not the chemical composition. Only molecular arrangement changes, not identity.
Flashcard 6: Is freezing water a physical or chemical change?
Answer: Physical change. Only state changes from liquid to solid.
Flashcard 7: Is chopping wood a physical or chemical change?
Answer: Physical change. Only size and shape change, not composition.
Flashcard 8: What are indicators of a chemical change?
Answer: Color change, gas production, temperature change, precipitate formation. These signs indicate new substances are forming.
Flashcard 9: What is the result of a chemical reaction?
Answer: Formation of new substances with different properties. Products have different molecular structures than reactants.
Flashcard 10: What type of change is dissolving salt in water?
Answer: Physical change. Salt molecules disperse but remain chemically unchanged.
Flashcard 11: Identify whether mixing vinegar and baking soda is a physical or chemical change.
Answer: Chemical change. Acid-base reaction produces gas and new compounds.
Flashcard 12: Is breaking a glass a physical or chemical change?
Answer: Physical change. Only shape changes, glass composition stays same.
Flashcard 13: What is a chemical change?
Answer: A change where a substance transforms into a new substance. New molecular bonds form, creating different substances.
Flashcard 14: Identify whether grinding coffee beans is a physical or chemical change.
Answer: Physical change. Only size changes, coffee composition unchanged.
Flashcard 15: Identify whether bending a metal rod is a physical or chemical change.
Answer: Physical change. Only shape changes, metal composition unchanged.
Flashcard 16: Identify whether melting ice is a physical or chemical change.
Answer: Physical change. Only state changes from solid to liquid.
Flashcard 17: What is combustion?
Answer: A chemical process of burning, involving oxygen and fuel. Oxidation reaction that releases energy as heat.
Flashcard 18: Identify whether boiling water is a physical or chemical change.
Answer: Physical change. Only state changes from liquid to gas.
Flashcard 19: What is a chemical change?
Answer: A change where a substance transforms into a new substance. New molecular bonds form, creating different substances.
Flashcard 20: Explain the term 'chemical property'.
Answer: A trait observed in a substance undergoing a chemical change. Describes reactivity and behavior during reactions.
Flashcard 21: What is a precipitate in a chemical reaction?
Answer: An insoluble solid formed from a solution. Forms when dissolved ions recombine and crystallize.
Flashcard 22: Identify whether photosynthesis is a physical or chemical change.
Answer: Chemical change. CO2 and glucose form from light energy and reactants.
Flashcard 23: Identify whether melting ice is a physical or chemical change.
Answer: Physical change. Only state changes from solid to liquid.
Flashcard 24: Identify whether rusting iron is a physical or chemical change.
Answer: Chemical change. Iron reacts with oxygen to form iron oxide.
Flashcard 25: What is combustion?
Answer: A chemical process of burning, involving oxygen and fuel. Oxidation reaction that releases energy as heat.
Flashcard 26: Identify whether crushing a can is a physical or chemical change.
Answer: Physical change. Only shape changes, aluminum composition unchanged.
Flashcard 27: What type of change is burning wood?
Answer: Chemical change. Combustion produces new compounds like CO2 and H2O.
Flashcard 28: What is the law of conservation of mass?
Answer: Mass is neither created nor destroyed in a chemical reaction. Total mass of reactants equals total mass of products.
Flashcard 29: Identify whether fermenting grapes is a physical or chemical change.
Answer: Chemical change. Sugars convert to alcohol through enzyme reactions.
Flashcard 30: What occurs during a phase change?
Answer: Transition between different states of matter. Molecular arrangement changes but identity remains.
Flashcard 31: Is souring milk a physical or chemical change?
Answer: Chemical change. Bacteria produce acids that change milk composition.
Flashcard 32: What is deposition in terms of phase change?
Answer: Gas to solid transition. Vapor condenses directly to solid state.
Flashcard 33: Is cooking an egg a physical or chemical change?
Answer: Chemical change. Heat denatures proteins, forming new structures.
Flashcard 34: Identify whether digestion of food is a physical or chemical change.
Answer: Chemical change. Enzymes break down molecules into new compounds.
Flashcard 35: Is chopping wood a physical or chemical change?
Answer: Physical change. Only size and shape change, not composition.
Flashcard 36: What is the main difference between physical and chemical changes?
Answer: Physical changes do not alter chemical composition; chemical changes do. Chemical composition determines the type of change.
Flashcard 37: Identify whether rusting iron is a physical or chemical change.
Answer: Chemical change. Iron reacts with oxygen to form iron oxide.
Flashcard 38: Is cooking an egg a physical or chemical change?
Answer: Chemical change. Heat denatures proteins, forming new structures.
Flashcard 39: Identify whether bending a metal rod is a physical or chemical change.
Answer: Physical change. Only shape changes, metal composition unchanged.
Flashcard 40: What does a chemical equation represent?
Answer: Reactants turning into products in a chemical reaction. Shows molecular rearrangement during reactions.
Flashcard 41: What is the law of conservation of mass?
Answer: Mass is neither created nor destroyed in a chemical reaction. Total mass of reactants equals total mass of products.
Flashcard 42: Identify whether bleaching a stain is a physical or chemical change.
Answer: Chemical change. Bleach chemically alters the stain molecules.
Flashcard 43: What is a physical property?
Answer: A characteristic that can be observed without changing substance identity. Observable without altering molecular composition.
Flashcard 44: Is souring milk a physical or chemical change?
Answer: Chemical change. Bacteria produce acids that change milk composition.
Flashcard 45: Identify whether frying an egg is a physical or chemical change.
Answer: Chemical change. Heat denatures proteins in the egg.