Flashcards
Chemistry - Particles
Cards in this deck (49)
- 1What is a particle?very small part of a material
such as an atom or molecule - 2What is a particle model?a way of explaining the behaviour of
solids, liquids and gasses
in terms of small moving particles - 3What is energyIf something has energy if it can make something happen with the energy
- 4What are Intermolecular forcestransfered forces
- 5What is densityhow close together the
molecules of a substance are - 6Name the 3 states of the particles
- 7Can you press against Solids Liquids GasesSolids - No
Liquids - Yes
Gases - Yes - 8Can you push against Solids Liquids GasesSolids - No
Liquids - Yes
Gases - Yes
You can easily push your hand through liquids and gases - 9Can the following change shape? Solids Liquids GasesSolids (ice can't) - No
Liquids (water can) - slightly
Gases (smoke can) - Yes - 10Can the following squash? Solids - No Liquids - Yes Gases - Yessand can't
water can
air can - 11Give examples of three gasesOxygen, helium, carbondioxide
- 12Are gases fast or slow?Fast
- 13Are solids hard or soft? Some solids can dissolve in water, give an example.hard
sugar - 14Are metals strong or weak?strong
- 15Name something metal can do that non metals can'tconduct heat and electricity
- 16What does brittle mean?it can snap
- 17Which of these substances will disolve? copper, iron, saltsalt
- 18Which of these substances can conduct electricity spring nail plastic glass woodspring
nail - 19What does malleable mean?bendable
- 20What are independent variables?variables you can change
- 21What are dependent variablesvariables you can measure
- 22What are controlled variablesvariables that you keep the same
- 23Give 3 examples of properties of LiquidSpread out
drinkable
try to fill space
you can boil it - 24Give 2 examples of gasesspread out in tight spaces
you can inhale them - 25Give an example of an independent variableThe length of someones hair
- 26What is diffusion?movement of particles
from a high concentration
to a low concentration
e.g. squash diluted in water - 27Which image shows the less concentrated solution?>The one on the right because the
particles are more evenly dispersed.
- 28What is a melting point?The fixed temperature at which
a pure solid substance melts
e.g.. ice - 29What is Freezing point?The fixed temperature at which
a pure liquid substance freezes.
e.g.. water - 30What is a pure substance? Give an example of a pure substance.a substance that contains
only one type of particle.
gold - 31What is a mixed substance?A substance that contains two or more substances which are mixed.
- 32How do we separate two different sized solidswe use a sieve
e.g.. sand from gravel - 33How would we separate a magnetic and non magnetic mixture? give an example of substanceswe would use a magnet
iron filings from sand - 34How would you separate a mixture of salty water and sand?we would use a filter funnel
and filter paper.
The sand is insoluble
whilst the salt is soluble - 35How would you separate salt from water?heat up the water which will evaporate leaving the salt behind.
- 36what apparatus do you use to separate two immiscible liquids?a separating funnel
- 37What is it called when a solid is mixed with a liquid so it can no longer be seen?dissolve
- 38What is a solventa liquid in which something
can be dissolved? - 39What is a solute?a solid that has been dissolved
- 40What is a solution?a mixture that a solid has dissolved into.
- 41What is a solublea solid that can dissolve
- 42What is the mass of solute that dissolves in a solute at a particular temperatureSolubility
- 43The increasing temperature will increase the solubility of a liquid true or false?true
- 44Diffusion depends on what?temperature
- 45Temperature affects the viscosity of liquids. What does viscosity meansticky
the property of a liquid that describes
how fast or slow it will flow - 46What two ways does temperature affects the viscosity of liquidsparticles get energy
spreads out and flows easier - 47What is the change of state when steam hits a window?condensation
- 48What appears when hot steam hits a cold window?condensation
- 49An insoluble liquid means what?A liquid that can't dissolve
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- Chemistry Flashcards on Chemistry - Particles, created by Seth Bailey on 15/11/2017.
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- Seth Bailey
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