chemistry yr 10 test 1 Flashcards
must needs to know for upcoming science chem test
what is the formula for n
n= N divded by 6.02 X 10 to the power of 23
what is the formula for N
N= n(6.02 X 10 to the power of 23)
what is the formula of M
all of the atomic weights of the elements present added together
what is the formula of m
m=n X M
what is M
molar mass of substance
what is m
mass of substance
what is N
number of particles
what is n
number of moles
what is the unit for n
mols
what is the unit for M
gmol to the negative power of 1
what is unit for m
g (grams)
what is the unit for N
particles of (element name/names)
what is an isotope
a type of element where it has the same amount of protons as an other elements but has a different amount of particles
what is the purpose of bonding
for the elements involved to have a full valence shell
what are the three types of bonding
ionic, covalent, metallic
what two parts are used for an ionic bonding
metal + non-metal
what two parts are used for covalent bonding
non-metal + non-metal
what two parts are used for metallic bonding
metallic+ metallic
what is a cation
an ion with a positive charge
what is an anion
an ion with a negative charge
what is an ion
an ion is the elements shown with their charges
what is the structure of an atom
nucleus filled with protons and neutrons with electron shells surrounding with electrons drawn on them
2-8-8-8
what is the formula for hydrogen carbonate
HCo3 (-) anion
what is the formula for hydrogen sulfate
HSO4 (-) anion
