This is because of Gravity. Your muscles or your entire body is at ease or whatever because the moon has more mass than earth.
Answer:
These tests determine the solubility of the compounds formed upon adding the test solution
Explanation:
Addition of Ba(NO₃)₂ will cause a precipitate ((Ba)₂SO₄) to form in the solution of (NH₄)₂SO₄. No precipitates will form in the other unknown solutions. Thus, whether or not the solution is ammonium sulfate can be determined.
Addition of NaCl solution will cause a precipitate (AgCl) to form in the solution of AgNO₃. No precipitates will form in the other unknown solutions. Thus, whether or not the solution is silver nitrate can be determined.
If no precipitates form, then the unknown solution must be KCl.
1st --> number of molecules in 0,65g SF₆:
2nd --> <span>How many grams of NH3 are needed to provide 2,68</span>ˣ10²¹ molecules
<span>Boyle's Law is
P1 * V1 = P2 * V2.
Let's calculate the pressure of Gas A
P1 = 2.5 V1 = 762
P2 = ? and V2 = 762 + 149 = 911
So P2 = P1 * V1/V2 = 2.5 * 762/ 911 = 2.091
Let's calculate the pressure of Gas B
P1 = 4.9 and V1 = 149
P2 = ? and V2 = 149 + 762 = 911
So P2 = P1 * V1/V2
P2 = 4.9 * 149/911 = 0.8014
From Dalton's law the resulting pressure = 0.8014 + 2.091 = 2.892</span>