Questions and Answers
What is anything that has mass and takes up space?
What is a small particle that is a building block of matter?
Atom
What is matter with a composition that is always the same?
Substance
What is a substance that consists of just one type of atom?
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What type of substance contains atoms of two or more different elements chemically bonded together?
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What does it mean to form a solution by mixing evenly?
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What is matter that can vary in composition?
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What type of mixture has individual substances that are evenly mixed?
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What type of mixture has individual substances that are not evenly mixed?
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Explain why aluminum is a substance.
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The number of _________ always differs in atoms of different elements.
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Distinguish between a heterogeneous mixture and a homogeneous mixture.
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Substances and mixtures are two types of ____________.
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Which term describes matter that is a substance made of different kinds of atoms bonded together?
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The formula AgNO3 represents a compound made of which atoms?
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Which is an example of an element?
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Which describes how mixtures differ from substances?
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Which is an example of a substance?
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Study Notes
Classifying Matter
- Matter: Defined as anything that has mass and occupies space.
- Atom: The smallest particle that serves as the fundamental building block of matter.
- Substance: A type of matter with a consistent composition throughout; remains the same regardless of its form.
- Element: A pure substance composed of only one type of atom, represents the simplest form of matter.
- Compound: A substance formed when two or more different elements are chemically bonded together, creating a new material with unique properties.
- Dissolve: The process of forming a solution by evenly mixing a solute into a solvent.
- Mixture: A physical combination of two or more substances that retain their individual properties; can vary in composition.
- Homogeneous Mixture: A mixture in which the components are evenly distributed, resulting in a uniform composition throughout.
- Heterogeneous Mixture: A mixture where the components are not evenly mixed, leading to different compositions in various samples.
Key Distinctions
- Aluminum as a Substance: Always made from the same type of atom, thus it is classified as a substance like other examples (oxygen, sugar, water).
- Protons in Atoms: The number of protons distinguishes atoms of different elements, determining their unique characteristics.
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Homogeneous vs. Heterogeneous Mixtures:
- Heterogeneous mixtures can have varying compositions, while homogeneous mixtures have a uniform composition across different samples.
Relationships and Examples
- Matter consists of two primary categories: substances and mixtures.
- Compounds are defined as substances formed from different types of atoms chemically bonded.
- Example of Compound: AgNO3 is made of 1 silver (Ag), 1 nitrogen (N), and 3 oxygen (O) atoms.
- Element Example: Sodium (Na) is an example of an element, distinguishing it from compounds and mixtures.
- Mixture Characteristics: Mixtures can be separated through physical means, unlike substances which are uniform.
- Substance Example: Water (H2O) is a specific example of a pure substance, in contrast to mixtures like lemonade or soil.
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Description
Explore the fundamental concepts of matter in this quiz covering Chapter 7 Lesson 1 of your science curriculum. Learn key definitions including matter, atoms, substances, and elements through engaging flashcards designed to reinforce your understanding. Perfect for students looking to solidify their comprehension of classifying matter.
