Answer:
Electrons are shared in pairs!
Explanation:
I'm doing learning about Covalent Bonding too:)
Answer:
Option a (100 kPa) is the appropriate option.
Explanation:
The given value is:
Original pressure,
P₁ = 50 kPa
Let the new pressure be "x".
Now,
⇒ 
On substituting the values, we get
⇒ 
On applying cross-multiplication, we get
⇒ 
⇒ 
Thus the answer above is the right one.
Step first:
Since, 78.0 percent 
by volume is present in the air which implies there are 78 moles of present in 100 moles of air.
Now,
Mole fraction of = 
Mole fraction =
= 0.78
Partial pressure is equal to the multiplication of total pressure and mole fraction.
Partial pressure = 
(as 1 atm is atmospheric pressure)
= 0.78 atm.
Step second:
Henry's law constant is calculated by:
where,
is solubility of gas
is partial pressure of gas
is henry's law constant
Substitute the value of solubility and partial pressure to find the value of Henry's law constant in above formula:
k = 
= 
Thus, Henry's Law constant is 
.
<span> Magnesium chloride is the answer to this question
</span>
<span>Answer: at 0.01 °C and 0.0060 atm the three phases (solid, liquid and gas)
</span><span>
</span><span>
</span><span>Explanation:
</span><span>
</span><span>
</span><span>1) Water at 0.0060 atm and 0.01° C is at its triple point.
</span>
2) The triple point is the point in the phase diagram at which the three physical states coexist: gas, liquid and solid.
3) That means that water can freeze and boil at the same time. In fact they can happen any of the six changes of phase: freezing (liquid to solid), melting (solid to liquid), evaporation (liquid to gas), condensation (gas to liquid), sublimation (solid to gas), and deposition (gas to solid).
The phase diagram is unique for any substance, meaning that it is different for different substances: the normal boiling and melting points are different.
