Answer:
Option D. 3 ppm isopropanol.
Explanation:
From the question given above, the following data were obtained:
Mass of isopropanol = 6 mg
Mass of water = 2 Kg
Isopropanol concentration =?
Concentration = mass isopropanol / mass of water
Isopropanol concentration = 6 mg / 2 kg
Isopropanol concentration = 3 mg/Kg
Next, we shall convert 3 mg/Kg to ppm. This can be obtained as follow:
Recall:
1 mg/Kg = 1 ppm
Therefore,
3 mg/Kg = 3 ppm
Thus, the isopropanol concentration is 3 ppm.
The First 2 statements stated above were false whereas the third one is a true statement.
Explanation:
- The viscosity of bitumen is about 100 times greater than the viscosity of water - False
Reason - The viscosity of bitumen is about not 100 times greater than the viscosity of water, it is actually 100, 000 times greater.
- Oil from oil sand deposits is only obtained by first heating the sands at high temperatures is False.
Reason- Oil from oil sand deposits is not obtained by first heating the sands at high temperatures but by using steams
- Oil sands contain sand, water, and light crude oil is true.
A mole is a unit to describe an amount of something/specific substance. Typically standard for measuring a large quantity of small entities like atoms, molecules, or other particles.
Answer:
Conditions are optimal for upwelling along the coast when winds blow along the shore. Winds blowing across the ocean surface push water away. Water then rises up from beneath the surface to replace the water that was pushed away. This process is known as “upwelling.”
Explanation:
Divergent boundaries and convergent boundaries are the opposite processes that occurs in the tectonic plates.
<h3>Difference between Divergent and convergent boundaries </h3>
Divergent boundaries are the regions where new crust is formed when the plates pull away from each other while on the other hand, Convergent boundaries are the regions where crust is destroyed when one plate dives over another.
So we can conclude that Divergent boundaries and convergent boundaries are the opposite processes that occurs in the tectonic plates.
Learn more about tectonic plate here: brainly.com/question/1162125
