- l
- kg
- cm
- gm
- ml
- km,m
- m
- nm
- mg
- ms
- gm
- nm
- .
- .
- l,gm
- .
- kg
- m
- gm,m
- s
Hope this helps :-). And....
ml: milliliter
kg: kilogram
m: meter
mg: milligram
mm: millimeter
ms: millisecond
l: liter
km: kilometer
µg: micro gram
cm: centimeter
g: gram
nm: nano meter
Answer:
C2H4O
Explanation:
The chemical molecular formula is C2H4O.
Also note*: Acetaldehyde is the chemical name for this structural formula.
Answer:
-2
Explanation:
Calcium is the element of second group and forth period. The electronic configuration of Calcium is - 2, 8, 8, 2 or 
There are 2 valence electrons of Calcium.
Thus, calcium loses two electrons to sulfate ion and sulfate ion accepts these electrons to form ionic bond.
Calcium sulfate, 
is formed when 2 valence electrons of calcium are loosed and they are gained by sulfate ion.
Thus, the charge on the sulfate ion is -2.
Subscripts cannot be changed because they are the ratio of the amount. And as we know, in a chemical equation/reaction, mass cannot be created nor destroyed. Therefore, we cannot change subscripts, however, we could change coefficients. <span />
A I think that a bar graph would best represent this information.
