<h3><u>Answer;</u></h3>
Partial pressure of Ar = 92.934 kPa
<h3><u>Explanation;</u></h3>
Partial pressure of a gas = Mole fraction × Total pressure
Mole fraction = Number of moles of a gas /Total moles of gas
Therefore;
Mole fraction of Ar = 0.211 mol/ (0.211 + 0.150)
= 0.5845
Total pressure = 159 kPa
Hence;
Partial pressure of Ar = 0.5845 × 159 kPa
<u> = 92.934 kPa</u>
Answer:
Magnesium has 2 valence electrons.
Explanation:
The atomic number of magnesium is 12. This means that it has 12 protons and 12 electrons. The first electron shell can hold 2 electrons, the second can hold 8, so the third will have 2 electrons. The outermost shell of the atom has two electrons. Therefore, magnesium has 2 valence electrons.
Answer:
As the Mentos candy sinks in the bottle, the candy causes the production of more and more carbon dioxide bubbles, and the rising bubbles react with carbon dioxide that is still dissolved in the soda to cause more carbon dioxide to be freed and create even more bubbles, resulting in the eruption
Drop out my dude whatever this is ain’t worth it
