Energy increases with increasing frequency.
Answer:
Pressure for H₂ = 11.9 atm
Option 5.
Explanation:
We determine the complete reaction:
2Al(s) + 6HCl(aq) → 2AlCl₃(aq) + 3H₂(g)
As we do not know anything about the HCl, we assume that the limiting reactant is the Al and the acid is the excess reagent.
Ratio is 2:3.
2 moles of Al, can produce 3 moles of hydrogen
Therefore 4.5 moles of Al must produce (4.5 . 3) / 2 = 6.75 moles
Now we can apply the Ideal Gases law to find the H₂'s pressure
P . V = n . R . T → P = (n . R .T) / V
We replace data: (6.75 mol . 0.082L.atm/mol.K . 300K) / 14L
Pressure for H₂ = 11.9 atm
The compounds are missing. It will be helpful instead if you know what are stereoisomers. <span>Two molecules are described as stereoisomers of each other if they are made of the same </span>atoms<span>, connected in the same sequence, but the atoms are positioned differently in space in which the difference between two stereoisomers can only be seen when the three dimensional arrangement of the molecules is shown.</span>
The Ksp of cobalt(II) hydroxide is equal to [OH-]2[Co2+]=5.92*10-15. And [OH-]=2[Co2+]=2*[Co(OH)2](dissolved). So the molar solubility of this compound is 1.14*10-5 M.
You can tell them apart from its form.
If it forms loose and needs like a container to hold it up, that's liquid.
If it is hard and stable, definitely a solid.
And if you barely see something very loose (and normally goes up), that's liquid.
