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Exam Flashcards

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Biology 101 flashcards
1
Q

What is matter

A

Anything that has mass or takes up space

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2
Q

What is a substance

A

Kind of matter with uniform properties

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3
Q

What is the particle theory of matter

A
  1. All matter is made up of extremely tiny particles
  2. Each pure substances has its own kind of particle
  3. Particles attract each other
  4. Particles are always moving
  5. When particles get heated up they move faster
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4
Q

What is stability

A

The ability of a substance to remain uncharged

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5
Q

What is combustibility

A

The ability or a substance to burn in air

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6
Q

What is toxicity

A

The ability or a substance to cause harmful effects to plants and animals

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7
Q

What is physical and chemical change

A

Physical change: Change in a substance that does not make a new substance

Chemical change: One it more new substances are produced it can’t get back original form

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8
Q

What makes up an atom

A

Protons neutrons and electrons

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9
Q

How did Bohr contribute to the atomic theory

A

He did the Gold foil experiment

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10
Q

What is standard atomic notation

A

The chemical symbol with mass number and atomic number beside it
( atomic number = protons)

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11
Q

What is the Atomic number and mass numbers

A

Atomic number Number of protons on the bottom and mass number is protons plus neutrons on top

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12
Q

Who invented the modern periodic table

A

Mendeleev

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13
Q

What are the trends in the periodic table

A

Group atomic radius: down a column atomic radius increases
Periodic atomic radius trend: across a period L to R atomic radius decreases
Group trend ionization energy: Down a column energy decreases
Periodic trend ionization energy: Across a period L to R energy increases
Group electronegativity trend: Down column decreases
Periodic electronegativity trend: Across L to R increases

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14
Q

What’s a conductor and insulator

A

Conductor conducts energy well

Insulators don’t easily allow heat, energy, light or sound to pass through it

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15
Q

Molecules and atoms

A

Molecules is a group of atoms bonded together

Atoms are a basic unit of chemical elements

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16
Q

What are biotic and abiotic factors

A

Abiotic factors can determine which species will survive in the given environment like soil, temperature ( things that are not alive )

Biotic factors include predation, disease, competition, parasites, consumptions and symbioses. ( things that are alive )

17
Q

Food chains and energy transferred

A

10% of energy is transferred through food chains

18
Q

why is photosynthesis complementary to cellular respiration

A

both consume and create the same substances ( water glucose oxygen and carbon dioxide)

19
Q

What are producers, primary consumers, secondary consumers, tertiary and top consumers

A

Producers create food so primary eats it then secondary eats primary then tertiary eats that and then top consumer

20
Q

What is algae bloom and nitrogen cycle

A

Algae bloom: Increases in algae

Nitrogen cycles: Nitrogen is converted into multiple chemical forms, it circulates among the atmosphere

21
Q

What is a watershed

A

An area of land over which drains into a body of water

22
Q

What could affect a watershed

A

Weather: it could evaporate

23
Q

What is a community

A

A bunch of species together in one area

24
Q

What is erosion

A

Rock and soil are loosened from the earths surface at one location and moved to another

25
Q

What causes erosion

A

Erosion can be caused by natural elements such as wind

26
Q

What helps speed up the process of erosion

A

human activities like farming and deforestation speed up erosion.

27
Q

What is a keystone species

A

a species on which other species in an ecosystem largely depend, such that if it were removed the ecosystem would change drastically.

28
Q

What is NH3

A

Ammonia

29
Q

What is CH4

A

Methane

30
Q

What are the trends names in the periodic table

A

Group atomic radius
Periodic atomic radius

Group ionization energy
Periodic ionization energy

Group electronegativity
Periodic electronegativity

31
Q

Electrostatic series

A

Top loses electrons

Bottom gains electrons

32
Q

Ionic table

A

Hard
Conductive in water
High melting point
Bond is strong

33
Q

Molecular table

A

Soft
Poor conductor
Low melting point
Bond is weak

34
Q

What makes up an ionic bond

A

A non metal and a metal

35
Q

What makes up a molecular bond

A

Two nonmetals

Science (12 decks)

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