Particle Theory
What are the 3 states of matter?
Define insoluble
The solute cannot dissolve in a particular solvent
The seperation technique that removes magnetic substances is known as?
Magnetism
Moving from a liquid to a solid is what state change?
Freezing
What is the chemical symbol for water
H2O
How are the particles arranged in a solid?
Tightly packed
A solution is made of what two components?
Solute + Solvent
What property type does sieving rely on?
Particle density
Deposition is a _____ in energy
Decrease
How many planets are in our solar system?
8
Cooling decreases ______ of particles
A solution with lots of water compared to cordial is called _____ solution
Dilute
Why can't filtration be used for separation of salt in water?
What should be used instead?
Salt would dissolve in water
Evaporation
Sublimation is moving from which states of matter
Solid to Gas
Who created the 3 laws of gravity?
Isaac Newton
If a basketball is left out in the sun why does it expand?
The heat from the sun causes the gas particles to gain energy and vibrate more causing expansion
What is the difference between homogenous and heterogenous mixtures?
Heterogenous = components are not even spread and do not mix
Homogenous = Components are evenly distributed
Filtrate
Name the 3 state changes that involve an increase in energy?
Melting, evaporation, sublimation
What are the first 5 elements of the periodic table
Hydrogen, Helium, Lithium, Beryllium, Boron
Why does water sit at the bottom of a container while gas fills up a room?
Liquids take the shape of their container, gases don't have a fixed volume
In a glass of water, you keep adding red cordial to make it become red as possible
this solution has now reached its ______
Saturation point
A mixture contains sand, salt, and water. Explain the order of separation techniques you would use to separate all three substances and why each technique works?
Filtration to remove the sand, sand does not dissolve in water
Evaporation to remove the water leaving the salt behind, salt is soluble in water
how does grass on the oval end up being wet in the morning even though it hasn't rained the night before?
Condensation causes the water vapor in the air to turn into a liquid
Name two of the noble gases on the periodic table
Helium, Neon, Argon Krypton, Xenon, Radon, Oganesson