Independent variable: weather condition
dependent variable: sales of lemonade drink
controlled variable: the lemonade drink mixture.
Explanation:
From the description of the problem, the independent variable is the weather condition whereas the sales of lemonade drink is the dependent variable.
A dependent variable is one in which relies on the outcome of another variable. The independent variable does not rely on other variable. It is usually the cause in an experiment.
- The weather condition is an independent variable. Maria and Jane are simply trying to project their sales(dependent variable) on the condition of the weather.
- A control is that variable that does not have effect on the experiment. It is usually not the subject of an investigation and has no effect on the outcome. The Lemonade mix of lemon, sugar and water has no effect.
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Enzymes offer a faster pathway for the reaction to happen, so they lower the activation energy necessary for the reaction to happen. The result is that the reaction will happen faster
And he calls it a magic trick even though it is not!
Answer:
See image attached
Explanation:
a)
The full reaction mechanism of step 1 was obtained from Bartleby and attached to this answer. The steps involved in the reaction are:
1) Loss of Br- and formation of a carbocation
2) Attack of CH3CN on the carbocation
4) Formation of a quaternary nitrogen intermediate
5) Attack of water on the quaternary nitrogen intermediate
6) Loss of the water molecule
5) Formation of the amide product
b)
i) sodium hydroxide
ii) HCl
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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