Properties of Matter
This state of matter has the most dense particles
What is a solid
A phase change is what type of change
What is a physical change?
This is the formula needed to calculate density.
Mass/Volume = Density
I'm really good at getting full credit on my calculations because I always do these 3 things.
Show my work, write my units, and round to the correct number of sig figs.
This type of matter cannot be broken down into smaller substances and has unique characteristics.
What is an element?
Which category of physical properties does not depend on the amount of matter.
What is intensive?
These are the 2 units that I will use for density depending on which type of matter I am analyzing.
g/ml and g/cm3
These are the 3 components of an atom
protons, neutrons, electrons
Definite composition is a big clue to define this category of matter
What is a pure substance?
This is defined as the ability to undergo a change and will result in a different substance.
What is a chemical property?
I'm having a hard time understanding density. What is a quick explanation of what density is?
Density is a measure of how closely packed the particles of a substance are.
This helps me tell if a substance that is written is an element or a compound
It has 2 or more capital letters if its a compound and only 1 if its an element.
I cooled a container of gas decreasing the temperature, the pressure, and this other property of matter.
What is the kinetic energy?
This type of chemical change results in charcoal.
What is combustion?
Calculate the volume of an unknown solid that has a density of 2.79 g/cm3 and a mass of 3610.5 g. Answer with all the criteria that would be required on your test.
3610.5 / 2.79 = 1290 cm3
Volume is sometimes measured in cm3. Explain why this is.
The formula for volume is length x width x height but only solids can be measured this way.
Define the 2 categories of mixtures and provide an example for each.
Homogeneous and Heterogeneous mixture explanations
This property is defined as a substances ability to be pulled into a thin wire.
What is ductility?
I can increase the density of a substance without adding anything to it by doing this.
Change the state of matter by cooling it.
Name the 4 types of separation techniques we covered in class.
Filtration, evaporation, distillation, and decanting