Last level of atoms of these elements has 2+5= 7 electrons. These elements are located in the 17th group of the Periodic Table, and they are called halogens.
Answer:
Molecular Formula: C7H13Br
Synonyms:
1-Bromo-4-methyl-3-hexene
19198-88-0
1-bromo-4-methylhex-3-ene
3-Hexene,1-bromo-4-methyl-
SCHEMBL9808280
More...
Molecular Weight:
177.08 g/mol
Dates:
Modify:
2019-10-19
Create:
2007-02-08
hope his helps! :/
Answer:
d = 2.27 cm3
Explanation:
m = 125 g
V = 55 cm3
m = V × d
=> d = m/V = 125/55 = 2.27 g/cm3
When oxygen is found is peroxide, it has an oxidation number of -1.
The chemical formula of hydrogen peroxide is H2O2. We know that hydrogen always has +1 oxidation state until it forms metal hydrides. So in H2O2, the oxidation state ofhydrogen is +1.
Now, let oxidation state of oxygen be x. So,
2 * (+1) + 2*x = 0
2 + 2x = 0
2x = -2
x = -2 / 2
x = -1
Hence, the oxidation number of oxygen in peroxides is -1
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