2-8-18-6 is the electron configuration. not sure what the other person was saying lol
Answer:I think it's Geosphere
Explanation:
Answer:
So the answer to "every element and compound has a unique set of properties. True or False?" is TRUE
Explanation:
No the law of cross cutting relates to all somewhat horizontal. The law of cross cutting is the logical assumption that a magma protrusion that cuts through horizontal layers at a diagonal or vertical is younger than the layers that it cuts through.
Sedimentary rocks are most often found in horizontal or near horizontal layers or strata. Therefore cross cutting can be used most often in the relative dating of sedimentary rocks.
However lava flows also form horizontal layers of rock. Pumice ash can be laid down in horizontal layers. A magma protrusion can also be used to relative date igneous layers of rock
Answer:-
27.38%
Explanation:-
Molecular weight of sodium hydrogen carbonate NaHCO3
= 23 x 1 + 1 x 1 + 12 x 1 + 16 x 3
= 84 gram
Total sodium Na present in NaHCO3 = 23 x 1 = 23 gram
Percentage of sodium present=
Total sodium x 100/ (Total molecular weight)
= 23 x 100 / 84
= 27.38 %