Flashcards in Intro to Biology Pt 2 Deck (26)
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What is the strongest, most stable bond?
Covalent bond
1
What is bonding?
Sharing relationship between electrons & neighboring elements
2
What are 3 types of chemical bonds?
1. Covalent
2. Ionic
3. Hydrogen
3
What is the weakest bond?
Hydrogen Bond
4
What is a covalent bond?
Strongest bond. most stable. electron sharing. mutually beneficial relationship (like marriage)
5
What is matter?
Anything that has mass & takes up space.
6
What is mass?
The physical composition of a particle
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What is mass not?
Mass is Not weight
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What is weight?
Mass is = to Mass X Gravity
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What are 4 states of matter?
1. Solid
2. Liquid
3. Gas
4. Plasma
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How many states of matter are there?
4 (3 on earth)
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Describe a solid
Rigid, low energy, defined shape & volume.
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Describe a liquid
Fluid, moderate energy, defined volume, no shape.
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Describe a gas
Disruptive, erratic, high energy, no defined volume or shape.
14
Describe plasma
Extremely high energy, observed in space in stars
15
What is sublimination?
When a solid is condensed directly to a gas skipping the liquid stage (dry ice)
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What is energy?
Ability to do work (heat, light, wave manipulation)
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What is potential energy?
Stored energy, potential to be used
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What is kinetic energy?
Energy in use
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What is an atom?
Smallest subunit of an element that maintains its physical properties
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What is an element?
Molecules with distinct characteristics & identities.
Substance that can not be broken down chemically into another substance.
21
How many subatomic particles do atoms contain?
3
(Electrons, Protons, Neutrons)
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Name 3 subatomic particles.
1. Electrons
2. Protons
3. Neutrons
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Do protons have a Positive or Negative charge?
Positive (+)
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Do Electrons have a positive or negative charge?
Negative (-)
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