Answer:
1 : NA = 1 | 2 : N = 2 | 3 :
N = 1 | O = 5 |
O = 3 | |
Explanation:
im sorry but ion know the last one
Answer:
c
Explanation:
all universes in the milky way are unique in planets and compositions
Two hydrogens
Oxygen needs two electrons to fill its outermost electron shell. Hydrogen has one electron to play with. Therefore, an oxygen atom needs two hydrogens to bond to in order to complete its shell.
C.
jk dont do it hehehehe
To find molar mass: look for each element on the table and find their atomic masses. Then add each atomic mass to find the molar mass. If there is a subscript then that means that there is 3 of that number. For atomic mass round to the nearest hundredths
FeCl3= 162.2
Fe2(SO4)3= 354.88
PbO=223.2
PbO2 = 239.2
Pb3O4=685.6
