Answer:
A.
Explanation:
I chose this because it seems more reasonable . Because its in the air so im guess that its gravitational bc to stay on top of a hill you need balance . Im sorry if its wrong k . I tried .
Answer:
Simple and facilitated diffusion are both similar types of phenomenon where the substances are moved from a region of high concentration to lower concentration across a semi-permeable membrane.
The main difference between them is that the facilitated diffusion requires a special type of protein or carrier molecules in order to transport the substances whereas simple diffusion does not require such molecules. The rate of flow of these substances is high in the facilitated diffusion in comparison to the simple diffusion.
I think that it's d) F- but I'm not sure.
Answer:
3.03 x 10²³ formula units
Explanation:
First we <u>convert 48.0 grams of magnesium chloride into moles</u>, using its <em>molar mass</em>:
- 48.0 g ÷ 95.21 g/mol = 0.504 mol MgCl₂
Then we <u>convert 0.504 moles into formula units</u>, using <em>Avogadro's number</em>:
- 0.504 mol * 6.023x10²³ formula units/mol = 3.03x10²³ formula units
