Properties
How is matter held together?
Chemical Bonds
What do gas laws determine?
The pressure, volume, and temperature of gas.
Melting, Freezing, Sublimation, Deposition, Condensation, and Vaporization
When is the heating curve flat?
during phase changes
What is a liquid to a solid called?
Why are properties important in chemistry?
enable us to differentiate one material from another
What is the ideal gas law formula?
PV=nRT
How many basic changes of states of matter are there?
melting, freezing, sublimation, deposition, condensation, and vaporization (6)
What is a heating curve?
show how the temperature changes as a substance is heated up
What type of energy does a heating curve absorb?
they absorb kinetic energy
What is a property?
a characteristic of a particular substance that can be observed in a chemical reaction
What are the gas laws applicable to?
Only for gases
Fastest moving particles of all the states of matter.
What is a triple point?
The temperature and pressure at which the soild, liquid, and vapor phases of a pure substance can coexist in equilibrium
What do the lines on the diagrams show?
They indicate the boundaries between the different states.
What different types of bonding exist, and how are they different?
ionic, covalent, and metallic
How many gas laws are there?
3, Boyles law, Charles law, Avogrados law
Define Melting point and boiling point.
Melting point - is the temperature at which a solid becomes a liquid at normal atmospheric pressure.
Boiling point - the temperature at which a liquid boils and turns to vapor
What is the Critical point?
a point at which the derisive is zero or undefined.
What are the three parts of the phase diagram?
solid, liquid, and gaseous states of the substance.
How do ionic and covalent bonds form?
Covalent bonding involves the sharing of electrons between two or more atoms. Ionic bonds form when two or more ions come together and are held together by charge differences
Pressure varies inversely with volume.
What are the factors affecting the states of matter change?
Temperature and pressure
What do the slope lines on a heating curve represent?
the rising temperature and phase changes in the substance.
What is a phase change diagram?
a graphical representation of the physical states of a substance under different conditions of temperature and pressure.