The British Petroleum (bp's) effort to close the blowout preventer and install a containment dome following an explosion on the deepwater horizon drilling rig is an example of <u>regulatory policy </u>change.
The deepwater horizon drilling rig is a semi-submersible, transportable, floating, flexibly oriented drilling rig that could work in sea depths of up to 10,000 feet which is approximately 3,000 meters.
During the explosion that occurred in April 2010, British Petroleum made several efforts to contain the damages made and to prevent further outbreaks of disasters.
Part of the changes was shifting from a blowout preventer that has a specialized valve to seal, manage, and monitor oil and gas wells in order to prevent blowouts to a containment dome (a crucial component of a system meant to control an oil well's underwater blowout).
Therefore, we can conclude that the British Petroleum (bp's) effort to close the blowout preventer and install a containment dome following an explosion on the deepwater horizon drilling rig is an example of <u>regulatory policy </u>change.
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Hydrogen gas reacts with oxygen gas to form water according to the equation
![2H_{2(g)} + O_{2(g)} --\ \textgreater \ 2 H_{2}O_{(l)}](https://tex.z-dn.net/?f=%202H_%7B2%28g%29%7D%20%2B%20%20O_%7B2%28g%29%7D%20%20--%5C%20%5Ctextgreater%20%5C%20%202%20H_%7B2%7DO_%7B%28l%29%7D)
From the coefficients in the reaction equation, we can see that it takes two molecules of hydrogen to react with one molecule of oxygen. Since we begin with equal amounts of both gasses, we can conclude that hydrogen is the limiting reactant because we use it up first. Thus, we use hydrogen for our stoichiometry that follows.
![(6 molecules H_{2} ) ( \frac{2 molecules H_{2}O }{2 molecules H_{2} } ) = 6 molecules H_{2}O](https://tex.z-dn.net/?f=%286%20molecules%20%20H_%7B2%7D%20%29%20%28%20%5Cfrac%7B2%20molecules%20%20H_%7B2%7DO%20%7D%7B2%20molecules%20%20H_%7B2%7D%20%7D%20%29%20%3D%206%20molecules%20%20H_%7B2%7DO%20)
Thus, the answer is B, 6 water molecules are produced with hydrogen being the limiting reactant
1. s block elements have spherical s orbital as
their outermost orbital.
2. Since s orbital can accommodate a maximum of 2 electrons, each one of these elements have 1 or two electrons.
3. These s electrons are lost very easily to form
monopositive ions by Isoing one electron in the
outermost orbital or dipositive ions by losing 2
electrons.
4. They have low ionisation potentials and low electronegativities.
5. They are good conductors of heat and electricity, excepting H2 and He.
6. They are silvery, shiny metallic substances, (with the exception of hydrogen and helium which gaseous nonmetals).
7. They are malleable and ductile, i.e., we can
make sheets and wires from them, (exception:
H2, He)
8. They readily form ionic salts with most nonmetals.
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