Particles

  • Created by: Darineb
  • Created on: 29-05-18 13:41
To calculate volume when given the density do you divide or times?
Divide the volume by the density
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Which SOM has a definite shape and a definite volume?
Solid
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Which SOM has the least energy in it and which SOM has the most energy in it?
Most=Gas/Least=Solid
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What wrod means "to get smaller" and which word means "to get bigger"?
Smaller=contract/Bigger=expand
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To work out the density of something when the mass is known, do you divide or times?
Times the density by the mass
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To calculate the density when the mass and the volume is known,do you times or divide?
Divide the mass by the volume
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To calculate the mass when given the density,do you divide or times?
Times the density by the mass
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Can a liquid be compressed?
No
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The random motion of particles in a liquid or gas is known as what type of motion?
Brownian motion
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What is diffusion?
When atoms move from high concentration to low concentraition
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What is a mixture made up of?
Two or more elements/substances which are not joined together
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What are elements?
Simple substances made up of only one kind of atom
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What is a compound?
More than one element chemically combined together
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What is Thermal Decomposition?
Breaking down a single compound using heat
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What does Thermal Decomposition do?
Extracts metals
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What are metals and non-metals?
Compounds
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Properties of metals are?
Stronmg and flexible,Shiny,Good conductors of electricity and heat,High melting point in solids
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Properties of non metals are?
Low melting points in all SOM's ,Brittle,Not shiny,Poor conductors of heat and electricity
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State some metals.
Copper, Gold,Aluminium. note that Mercury is the only liquid metal
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State some non metals
Sulfur,Carbon,Oxygen,Nitrogen
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Signs of chemical reactions
Colour change,Gas been given off,Solid forming into a liquid,Energy change
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How do chemical reactions start?
Mixing the right substances together,Heat is used to start a reaction and sometimes many reactions give off heat,Continuous supply of energy
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If there is a metal in the compound what happens,also if there are two elements the ending changes to what?
It will come first and the ending changes to ide
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If there are two elements and oxygen then the ending changes to what?
Ate
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Definition of Pure
Containing one substance
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How many elements are there on the periodic table?
118 elements and 90 natural elements
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Other cards in this set

Card 2

Front

Which SOM has a definite shape and a definite volume?

Back

Solid

Card 3

Front

Which SOM has the least energy in it and which SOM has the most energy in it?

Back

Preview of the front of card 3

Card 4

Front

What wrod means "to get smaller" and which word means "to get bigger"?

Back

Preview of the front of card 4

Card 5

Front

To work out the density of something when the mass is known, do you divide or times?

Back

Preview of the front of card 5
View more cards

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