States of Matter Flashcards
what is the definition of fluid?
Gas or liquid
what is matter?
any substance that has a mass and volume
What are the three states of matter?
Solid, liquid, and gas
What factors influence the state of matter in a substance?
Temperature and Pressure
Any matter can be liquid, solid, or gas (True/False)
True
Which two states of matter have a fixed volume?
Solid and Liquid
which state of matter has a low density?
Gas
which state of matter has a definite shape?
Solid
What is the melting point of a substance?
The temperature that a substance must reach to turn from a solid to a liquid
What is the boiling point of a substance
The temperature that a substance must reach to turn from a liquid to a gas
What is it called when a gas turns into a liquid?
condensation
What is it called when a liquid turns into a solid?
freezing
What is it called when a gas turns into a solid?
sublimation
What is it called when a solid turns into a gas?
deposition
What is evaporation?
Change of state from a liquid into a vapour at a temperature below the boiling point
Where does evaporation occur?
At the surface of the liquid
What is volatility?
The property of how easily a liquid evaporates
What is a pure substance?
A substance made of one type of particle (element or compound)
Pure substances have boiling points that are not exact (True/False)
False
What is an atom?
The smallest unit of matter that retains its properties
What is a molecule?
A physically OR chemically bonded group of atoms
What are (intermolecular) forces?
the forces that occur between all molecules, causing them to attract each other
What is a mixture?
Two or more substances mixed together but not chemically bonded
What is a solution?
A result of a solute dissolving in a solvent
What is the solvent in a solution?
The solvent is the substance (liquid) that dissolves the solute
What is the solute in the solution?
The solid or gas that dissolves in the solvent to make the solution.
What is a suspension?
An insoluble solute in a solvent
What does soluble / insoluble mean?
Able / not able to dissolve
what does it mean if two liquids are miscible?
They are able to dissolve in each other (mix)
What does it mean if a solution is saturated?
It means that no more solute can dissolve in the solution.
What is measured by Solubility?
How much of a specific solute can dissolve in a specific solvent at a specific temparature
What does the concentration of a solution mean?
How much of a solute is in a solution (measured in g/100cm^3
Define diffusion
Particles moving in random directions, causing them to spread and mix
Water is an atom (True/False)
False
Is seawater an element, a compound, or a mixture?
A mixture
Is it possible to easily separate a mixture?
Yes
What is the unit of measurement for solubility?
g/100cm^3
If the solubility of copper sulfate is 20g/100cm^3, how much copper sulfate will dissolve in 40cm^3?
8g
If the solubility of copper sulfate in water is 20g/100cm^3, how much water does it take to dissolve 30g of copper sulfate?
150cm^3
What is a compound?
A chemically bonded group of atoms
is CuCO3 a compound?
Yes, all molecules with formulas and more than one type of atom are
