Chemistry Flashcards
What are solids?
Solids are a fixed shape.
What are liquids?
liquids take the shape of a container.
What are gasses?
gasses take the shape of a container however they move around freely.
Are melting and boiling point of a pure substate fixed?
Yes
What is the change of state called from solid to liquid.
melting
What is the change of state called from liquid to solid
freezing
What is the change of state called from solid to gas
sublimation
What is the change of state called from gas to liquid
condensation
What is the change of state called from gas to solid
deposition
What is the change of state called from liquid to gas
evaporation
How do you identify the melting and boiling point on a graph
Pause int he tempriture rising were it sraight.
Eere do you find the electron
Outer shell
Were do you find a neutron and proton
In the nucleus
What charge does a nuetron have
=
What charge does a proton have
+
What charge does an electron have
-
How do you find out the number of protion and elctrons and the atomic number.
The bottom number on a periodic table is the same for all 3.
How do you get the number of nutrons.
The amount of protons
- the mass number
How do you get number of moles
Mass of subsatance divided by relitive formula mass
What is avagadros number
6.02 x 10 to the power of 23
How do you get number of particles
Number of moles x avagadros number
Percentige of an element in a compound
Masss of element in coumpound divided by reletive formula mass x100
