There are 40 hydrogen atoms in 5 moles of <span>isopropyl alcohol</span><span />
Answer:
(BH3 follows the octet rule by dimerizing, as Hadi Kurniawan AR pointed out.) For H and He, an "octet" = 2 electrons. Boron does prefer to follow the octet rule, in that it likes to form borate compounds such as NaBH4. It also is happy to form compounds with elements with lone pairs.
Answer:
Explanation:
PV = nRT
We are to get the answer for the volume. Hence we make V the subject of the formula.
V = nRT/P
Where n= 0.250, R= 0.0821, P= 0.92 and T = 298
V = (0.250×0.0821×298)÷0.92
V = 6.11645÷0.92
V = 6.64
V = 6.6L
Answer:
yes it is true.
Ice floats on the surface of water because ice is less dense than liquid water
Explanation:
Answer:
B
Explanation:
Elements in a group are determined by the number of valence electrons
Elements in a period are determined by the number of electrons shell
The electronic configuration of the element is
2,8,8
the number of valence electron is 8 that means it is in Group 8/O
the number of electron shell is 3 that means it is in period (row) 3
Group 8/O elements are called Noble gases
