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cells > science notes > Flashcards

science notes Flashcards

1
Q

what are fluids

A

fluids are substances where its particles move freely

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2
Q

what do you have to have in a substance in order for it to burn

A

hydrogen and carbon

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3
Q

what is matter

A

anything that has a mass on a scale or takes up space

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4
Q

what is a molecule

A

a molecule is two or more atoms joined together with a chemical bond

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5
Q

what are the 3 groups of matter

A

solid, liquid, gas

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6
Q

how are the atoms packed in a solid

A

they are packed close together in a fixed pattern

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7
Q

what is the fixed pattern called

A

lattice

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8
Q

how are the atoms packed in a liquid

A

they are close together but they move around

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9
Q

how are the atoms packed in a gas

A

they are spread out

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10
Q

mass =

A

amount of matter in an object

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11
Q

what is brownian motion

A

the random movement of particles when visible particles bump into invisible particles causing the visible particles to move.

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12
Q

definition of diffusion

A

the movement of particles from a region of high concentration to a region of low concentration until equilibrium is reached.

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13
Q

do all gases travel at the same speed

A

no

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14
Q

definition of dissolve

A

a substance dissolves when it separates into particles and the particles spread throughout the solution.

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15
Q

what is a solute

A

the solid which is being dissolved

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16
Q

what is a solvent

A

the liquid in which the solute is dissolving in

17
Q

what is a solution

A

when the solute dissolves in the solvent a solution is formed

18
Q

saturated solution =

A

occurs when no more solute can dissolve in the solvent

19
Q

crystal flaw =

A

when there is something wrong with the crystal

20
Q

what is a compound

A

a compound is a molecule that is made up of two or more different atoms

21
Q

seed crystal =

A

tiny crystal

22
Q

faces of crystals =

A

the flat surfaces of a crystal

23
Q

what is plasma

A

plasma is a superheated gas with a very high energy

24
Q

how do you store plasma

A

you stare plasma surrounded by a magnetic field in a magnetic container

25
Q

what does heat increase in particles

A

kinetic energy

26
Q

kinetic energy =

A

movement

27
Q

melting point of pure water

A

0 degrees

28
Q

boiling point of pure water

A

100 degrees

29
Q

how do copper sulphate crystals grow

A

the copper sulphate solution is water with particles of copper sulphate in the spaces between the water particles. as the water evaporates there are fewer spaces and the particles arrange themselves on the crystal. this results in the crystal growing.

cells (3 decks)

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