Sodium Chloride is a compound.
The Precambrian is the earliest of the geologic ages, which are marked by different layers of sedimentary rock. Laid down over millions of years, these rock layers contain a permanent record of the Earth's past, including the fossilized remains of plants and animals buried when the sediments were formed. (P.s i read abt this in science not long ago but this is also sourced from nationalgeographic.com so it should be correct.)
Hope this helps.
How Earthquakes affect buildings
Use the equation d=m/v
your mass or "m" is 78 g
your volume or "v" is 60mL
if you plug those values into the equation it will look like this:
d=78/60
d=1.3g/mL should be what you come up with
The answer is 5.17 x 10^-1
