Matter Flashcards

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What is the simplest unit of a compound?

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What is the simplest unit of a compound? A molecule

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What is the simplest unit of an element?

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What is the simplest unit of an element? An atom

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What 3 subatomic particles compose an atom?

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What 3 subatomic particles compose an atom? Proton, Neutron, Electron

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What is an example of a homogeneous mixture?

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What is an example of a homogeneous mixture? A solution

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How might you describe a heterogeneous mixture?

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How might you describe a heterogeneous mixture? Mixture of differently-sized components

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Which state of matter contains the fastest-moving molecules?

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Which state of matter contains the fastest-moving molecules? A gas

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Color is an example of a _____________ property.

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Color is an example of a _____________ property. Physical

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A substance ’ s reactivity to oxygen is a ____________ property.

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A substance ’ s reactivity to oxygen is a ____________ property. Chemical

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Rust forms on a nail. What type of change is this?

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Rust forms on a nail. What type of change is this? Chemical

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A piece of paper is shredded. What type of change is this?

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A piece of paper is shredded. What type of change is this? Physical

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How is the density of an object determined?

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How is the density of an object determined? Mass divided by volume

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Which elements share the most physical properties?

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Which elements share the most physical properties? Elements located in the same groups (columns)

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Which law states that matter cannot be created or destroyed in a chemical reaction?

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Which law states that matter cannot be created or destroyed in a chemical reaction? Conservation of matter

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A combustion reaction involves which type of change?

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A combustion reaction involves which type of change? Chemical

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A chemical reaction occurs in which the products give off heat. How is this classified?

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A chemical reaction occurs in which the products give off heat. How is this classified? Exothermic

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