Answer:
1) False
2) False
3) True
4) True
5) False
Explanation:
1. Two sigma bonds comprise a double bond: False
Two sigma bonds are not possible between two atoms . There will always be one pi bond or two bonds with one sigma bond
2. A triple bond consists of one pi bond and two sigma bonds.
Two sigma bonds are not possible between two atoms . There will always be one pi bond or two bonds with one sigma bond
3. Bonds formed from atomic s orbitals are always sigma bonds. True
There is always an head to head overlapping possible with s orbital
4. A pi bond restricts rotation about the sigma-bond axis.
True.
5. A pi bond consists of two pairs of electrons.
False
Each bond can have one pair of electrons
If we're talking about the pregnancy-morning-pain-relief smear, it's an exogenous hazard.
Answer:
[Ar] 4s2 3d10 4p3
Explanation:
Arsenic is Element 33. It is the 15th element in the Fourth Row, following the noble gas Ar at the end of the Third Row.
Thus, its noble gas electron configuration is
[Ar] 4s2 3d10 4p3
Answer:
HBr is a strong acid
Explanation:
KBr is a salt which makes a base . also KOH is a base
First, you should convert the temperature unit to absolute temperature.
Second, you shoul graph the points. Then you will find a pretty linear correlations among the points.
You can pick between using the best fit line or you could observe that as you get to higher temperatures the linear behavior is "more perfect".
I found this best fit line:
P = 2.608T + 14
Then, for T = 423K
P = 2.608(423) + 14 = 1117 mmHg
If you prefer to use the last two points, this is the calculus:
[P - P1] / [T - T1] = [P2 - P1] / [T2 - T1]
[P - 960]/[423 -373] = [960 - 880] / [373- 343]
=> P = 1093.3 mmHg.
You can pick any of the results 1177 mmHg or 1093 mmHg, You need more insight to choose one of them: conditions and error of the experiment for example.
