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HPU Chemisty 1000 > Introduction > Flashcards

Introduction Flashcards

1
Q

Matter

A

Anything that has had mass and occupies space.

Things you can see, touch, taste or smell.

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2
Q

Property

A

A characteristic useful for identifying a substance or object. This includes:

  • Size
  • Color
  • Temperature
  • Chemical Composition
  • Chemical Reactivity
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3
Q

Physical Change

A

A change that does not affect the chemical makeup of a substance it object.

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4
Q

Chemical Change

A

A change in the chemical makeup of a substance.

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5
Q

Solid

A

A substance that has definite shape and volume.

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6
Q

Liquid

A

A substance that has volume but assumes the shape of its container.

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7
Q

Gas

A

A substance that has neither an definite volume nor an definite shape.

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8
Q

Chemistry

A

The study of the nature, Properties and transformation of matter.

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9
Q

Change of State

A

The conversion of a substance from one state to another .

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9
Q

Chemical Change

A

A change in the chemical makeup of a substance.

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10
Q

Chemical Compound

A

A pure substance that can be broken down into simpler substances by chemical reaction.

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11
Q

Chemical Formula

A

A notation for a chemical compound using element symbols and superscripts to show how many atoms of each element are present.

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12
Q

Chemistry

A

The study of the nature, properties and transformations of matter.

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13
Q

Conversion Factor

A

An expression of the numerical relationship between two units.

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14
Q

Density

A

The physical property that relates the mass of an object to its volume. Mass per unit volume.

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15
Q

Element

A

A fundamental substance that cannot be broken down chemically into any simpler substance.

16
Q

Energy

A

The capacity to do work or supply heat.

17
Q

Factor-Label method

A

A problem solving in which equations are set up so that unwanted units cancel and only the desired unit remains.

18
Q

Heterogenous Mixture

A

A non-uniform mixture that has regions of different composition.

19
Q

Homogenous Mixture

A

A uniform mixture that has the same composition throughout.

20
Q

Metal

A

A malleable element, with a lustrous appearance, that is a good conductor of heat and electricity.

21
Q

Met tabloid

A

An element whose properties are intermediate between those of a metal and a nonmetal.

22
Q

Nonmetal

A

An element that is a poor conductor of heat and electricity.

23
Q

Periodic Table

A

A tabular format listing all known elements.

24
Q

Physical Quantity

A

A physical property that can be measured.

25
Q

Product

A

A substance formed as a result of a chemical reaction.

26
Q

Pure Substance

A

A substance that has a uniform chemical composition throughout.

27
Q

Reactant

A

A starting substance that undergoes change during a chemical reaction.

28
Q

Rounding off

A

A procedure used for deleting non-significant figures.

29
Q

Scientific notation

A

A number expresses as a product of a number between 1 and 10, times the number 10 raised to a power.

30
Q

Significant Figures

A

The number of meaningful digits used to express a value.

31
Q

Specific Heat

A

The amount of heat that will raise the temperature of 1 g of a substance by 1 degree C.

AH=mCAT

32
Q

Temperature

A

The measure of the amount of heat energy in an object.

33
Q

Unit

A

A defined quantity used as a standard of measurement.

34
Q

Weight

A

A measure of the gravitational force that the earth or other large body exerts on an object.

35
Q

State of matter

A

The physical state of a substance as a solid, liquid or gas.

36
Q

Condensation

A

The change of state from gas to liquid.

37
Q

Sublimation

A

The change of state from solid to gas.

HPU Chemisty 1000 (1 decks)

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