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Biology > Chemistry 18-20 > Flashcards

Chemistry 18-20 Flashcards

1
Q

Substances that react

A

Reactions

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2
Q

A new substance produced by a reactant

A

Products

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3
Q

Reactions that form gases

A

Chemical reaction

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4
Q

Reactions that form solids

A

Chemical reaction

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5
Q

AQ

A

Aqueous

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6
Q

S

A

Solid

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7
Q

G

A

Gas

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8
Q

Metals are solid

A

Elements

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9
Q

H2,N2,O2,F2,C2

A

Most diatomic elements (gases)

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10
Q

Bromide is a

A

liquid

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11
Q

Iodine is a

A

Solid

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12
Q

Ionic compounds are solid @

A

room temperature

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13
Q

Release energy usually in the form of heat, light or electricity

A

Exothermic Reactions

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14
Q

A chemical reaction that occurs when oxygen reacts rapidly with a substance to form a new substance and gives off energy

A

Combustion

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15
Q

A reaction that absorbs energy

A

Endothermic reaction

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16
Q

Exothermic or endothermic happen at an organisms internal temperature and are almost always helped by enzymes

A

Biochemical Reactions

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17
Q

Photosynthesis

A

endothermic

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18
Q

Cellular respiration

A

Exothermic

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19
Q

All reactions involve the production of new substances with their

A

own characteristics and properties

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20
Q

all reactions involve the

A

flow of energy

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21
Q

When new substances form in chemical reactions

A

sometimes changes of state can be observed

22
Q

all chemical reaction are consistent to the

A

law of conservation of mass

23
Q

how chemists recorded chemical reaction

A

chemical equation

24
Q

The transfer of thermal energy through direct contact between the particles of a substance, without moving the particles to a new location.

A

Conduction

25
Q

the transfer of thermal energy through the movement of particles

A

Convection

26
Q

The pressure exerted by the mass of air above any point on warm air is less dense

A

Atmosphere Pressure

27
Q

Movement of cool air from high pressure to low pressure

A

Wind

28
Q

Deflection of any object from a straight line path by the rotation of Earth causes moving wind to turn right in the Northern Hemisphere and left in the Southern Hemisphere

A

Carigles Effect

29
Q

When wind travels from regions near the equator NE and SE by rising current of air

A

Trade Winds

30
Q

Bonds of fast mobbing air not subject to much friction and are so much faster than wind close to Earth’s surface

A

Jet Streams

31
Q

The amount of energy required to raise the temperature of lg. of substance by 1 degree Celsius

A

Specific Heat Capacity

32
Q

The amount of thermal energy absorbed or released based on the temp and mass of a substance

A

Quantity of Thermal Energy

33
Q

Cycle of water molecules constantly moving among the components of the biosphere

A

Hydrologic Cycle

34
Q

The amount of energy absorbed when 1 mol of substance changes from solid to liquid

A

Heat of Fusion

35
Q

Energy released when 1 mol of a solid form

A

Heat of Solidification

36
Q

Energy absorbed when 1 mol changes from liquid to gas

A

Heat of Vaporization

37
Q

Scottish physician who observed that when a cold object is in a cup of hot water, the object warms up he explained this by suggesting heat was an invisible fluid, called a caloric fluid

A

Joseph Black

38
Q

That heat and motion were related. He came to his conclusion when he noticed the endless amount of heat generated by the boring of brass canons

A

Benjamin Thompson

39
Q

Linked mechanic energy to Leibniz’s theory of Kinetic and potential energy in moving objects. He suggested that energy which creates mechanic energy. He also thought that mechanical energy was related to the work a system can do

A

Thomas Young

40
Q

Uses the chemical formula of reactant and products in a chemical equation to represent a chemical reaction

A

Formula Equation

41
Q

Formula equation showing the identity of each substance involved in a chemical reaction

A

Skeleton Equation

42
Q

A formula equation that follows the law of conservation of mass

A

Balanced Equation

43
Q

A reactive element reacts

A

Single Replacement Reaction

44
Q

Two elements combine to make a new compound

A

Formation Reaction

45
Q

A formation reaction

A

Synthesis Reaction

46
Q

Chemical reaction in which a compound breaks apart into its elements

A

Decomposition Reaction

47
Q

Compound that contains hydrogen and carbon: many gasolines and plastics

A

Hydrocarbon

48
Q

A reactive element reacts with an ionic compound

A

Single Replacement Reaction

49
Q

Commonly occur between two ionic compounds

A

Double Replacement Reaction

50
Q

The quantity that chemists use to measure elements and compounds

A

Mole (symbol-mol)

51
Q

The number of particles in 1 Mole

A

Avagrado’s Number

52
Q

Mass of one of a substance called the atomic molar mass on periodic table

A

Molar Mass

Biology (19 decks)

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