a flask of volume 5 dm3 contained 4 g of oxygen. calculate the pressure exerted by the gas at a temperature of 127 C
83,1
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10
The changes from liquid to gas?
vaporization
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15
Fixed shape and volume, touching each other and in regular arrangement
What this state of matter?
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15
What is giant ionic structure
compounds with ionic lattice
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What is alloy
MIxture of two or more metal with a non metals
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lifesaver
Give 15 points!
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shark
Other team loses 5 points!
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rocket
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thief
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20
Why is an alloy stronger than pure metals
because in alloy there is another atom that interupt and make it stick together so the cannot slide very easily
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15
What is pressure?
collisions between the gas molecules and the walls of the container?
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monster
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star
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fairy
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thief
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What is the difference between vaporization and boiling?
vaporization under temperature of boiling point
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15
The idea that molecules in gases are in constant movement is called?
kinethic theory of gases
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15
A flask volume of 2 dm3 was found to contain 5,28 of a gas. The pressure in the flask was 200 kpa and the temperature was 20 C. calculate the relative molecular mass of the gas?
32,2
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15
What happens when we heat a solid?
energy transfer and particles vibrate more, forces attraction weaken and solid changes to liquid
