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Matter Flashcards

(16 cards)

0
Q

Chemical Properties

A

Are the characteristics that determine how the composition of matter changes as a result of contact with other matter or the influence of energy

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1
Q

Physical Properties

A

Are the characteristics of matter that can be changed without changing its composition.

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2
Q

Physical Changes

A

Are changes to matter that do not change the fundamental components that make that substance.

Examples:
Iron is melted- describes a state change, but the material is still iron

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3
Q

Chemical Changes

A

Involve a change in the fundamental components of the substance.

Example:
Sugar ferments to form ethyl alcohol- describes how sugar forms a new substance (ethyl alcohol)
Iron combines with oxygen to form rust-describes how iron and oxygen react to make a new substance, rust

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4
Q

Elements

A

Substances which cannot be broken down into simpler substances by chemical reactions

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5
Q

Compounds

A

A substance with constant composition, that can be broken down into elements by chemical processes.
Most substances are chemical combinations of elements.
-compounds are made of elements
-compounds can be broken down into elements
-properties of the compound not related to the properties of the elements that compose it
-same chemical composition at all times

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6
Q

Homogeneous

A

Uniform throughout, appears to be one thing. (A solution)

  • pure substances
  • solutions (homogeneous mixtures)
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7
Q

Heterogeneous

A

Non-uniform, contains regions with different properties than other regions.

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8
Q

Pure Substances

A
  • All samples have the same physical and chemical properties
  • Constant composition all samples have the same composition.
  • Homogeneous
  • Separate into components based on chemical properties
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9
Q

Mixtures

A
  • Different samples may show different properties
  • Variable composition
  • Homogeneous or Heterogeneous
  • Separate into components based on physical properties

*All mixtures are made of pure substances

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10
Q

Matter

A

Is the part of the universe that has mass and volume.

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11
Q

Distillation

A

The method for separating the components of a liquid mixture that depends on differences in the ease of vaporization of the components.

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12
Q

Filtration

A

A method for separating the components of a mixture containing a solid and a liquid.

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13
Q

Solid

A

One of the three states of matter; has a fixed shape and volume.

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14
Q

Solution

A

A homogeneous mixture

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15
Q

States of Matter

A

The three different forms in which matter can exist: solid, liquid, and gas.