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chemistry > Matter > Flashcards

Matter Flashcards

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1
Q

Why do we study matter?

A

To improve our life style and solve problems.

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2
Q

Mass

A

Measurement of the amount of particles something has.

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3
Q

Energy

A

The ability to do work and cause changes.

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4
Q

What does a food chain show?

A

The energy transferred which decreases a 10% each level.

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5
Q

How is matter transformed in a food chain?

A

Through biogeochemical cycles in which it is reused.

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6
Q

Kilocalories

A

Energy stored as biomass.

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7
Q

Metabolism

A

The way we process matter and the energy we consume. Some energy is transformed into heat.

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8
Q

Transformation Mass-Mass

A

Combustion and boiling.

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9
Q

Transformation Mass-Energy

A

Chemical Reactions

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10
Q

Types of energy

A

Wind energy (Kinetic energy from the wind), Electric Energy (Kinetic energy of electrons) and Nuclear Energy (Potential energy from atoms).

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11
Q

States of matter

A

Liquid, solid, gas, plasma and bose-einstein condensate.

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12
Q

Quantum states of matter

A

Plasma and Bose Einstein condensate.

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13
Q

Solid

A

Definite shape and volume. No space between particles, no kinetic energy, no compressibility and no ability to flow.

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14
Q

Liquid

A

No definite shape, fixed volume, some space between particles, some kinetic energy, compressible under extreme pressure and has the ability to flow.

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15
Q

Gas

A

No definite shape or volume, a lot space between particles as well as movement, compressible and flows.

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16
Q

Plasma (Ionized gas)

A

So much heat that the atom breaks apart and leaves a bunch of nucleus and electrons free.

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17
Q

Bose-Einstein (Super atom)

A

It exists at absolute zero because atoms stop behaving like a particle and behave like waves which causes an atom identity loss.

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18
Q

Endothermic changes of matter

A

Melting, Vaporization and sublimation.

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19
Q

Exothermic changes of matter

A

Freezing, condensation and deposition.

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20
Q

Solid to gas

A

Sublimation

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21
Q

Gas to solid

A

Deposition

22
Q

Solid to liquid

A

Melting

23
Q

Liquid to solid

A

freezing

24
Q

Liquid to gas

A

Evaporization

25
Q

Gas to liquid

A

Condesation

26
Q

Changes of matter

A

Matter transformation that does not involve measurement scales.

27
Q

Physical Changes

A

Molecules are kept intact, they only change their organization.

28
Q

Chemical Changes

A

Molecules modify their structure.

29
Q

Chemical Properties of matter

A

Based on how reactive something is.

30
Q

Which are the two kinds of physical properties? |

A

Intensive and Extensive

31
Q

Intensive properties of matter

A

Doesn’t matter how much mass the object has. Color, Melting and boiling point, density.

32
Q

Extensive properties of matter

A

Determined by how much mass the object has. Mass, Volume, Length and Shape.

33
Q

What are the properties of matter?

A

Characteristics that allow us to identify a substance by measurement or scale.

34
Q

Are mass and energy the same?

A

According to the relativist theory mass and energy are different manifestations of matter.

35
Q

Substance

A

Something that cannot be physically separated.

36
Q

Compound

A

A substance that can be chemically decomposed

37
Q

Element

A

A substance that cannot be chemically decomposed.

38
Q

Mixture

A

Elements merged together in which there is no bonding whatsoever and can be physically separated.

39
Q

Homogeneous Mixture

A

Uniform composition.

40
Q

Heterogeneous Mixture

A

Not uniform.

41
Q

Colloids

A

Appears to be a homgoeneous mixture but has small particles there.

42
Q

Suspensions

A

Similar to a colloid but has bigger particles.

43
Q

Mass

A

Amount of matter.

44
Q

Weight

A

Amount of matter times the force of gravity.

45
Q

Substance

A

Particular kind of matter with uniform characteristics.

46
Q

Compounds

A

Substance made up of two or more elements that can be separated chemically.

47
Q

Compressibility

A

Measure of the change in volume resulting from external pressure applied to the surface of an object.

48
Q

Viscosity

A

A fluids resistance to flow.

49
Q

Miscibility

A

Two liquids with similar polarities mix.

50
Q

Difusion

A

Atoms merge together as a result of kinetic energy and the concentration equalizes on a lower concentration.

51
Q

Polarity

A

Distribution of charge inside a molecule.

chemistry (11 decks)

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