Answer:
Reversible reactions exhibit the same reaction rate for forward and reverse reactions at equilibrium.
Reversible reactions exhibit constant concentrations of reactants and products at equilibrium
Explanation:
A reversible reaction is a reaction that can proceed in both forward and backward direction.
Equilibrium is attained in a chemical system when there is no observable change in the properties of the system.
At equilibrium, a reversible reaction is occurring in at same rate. That is, the forward and backward reaction is occurring at the same rate. As the rate of the forward and backward reaction remains the same, the concentrations of the reactants and products will also be the same in order for the equilibrium to be maintained.
Answer:
Protons, neutrons, and electrons are the three main subatomic particles found in an atom.
Explanation:
Answer:
a) CaF₂.
b) 7.81g of CaF₂ are present.
Explanation:
a) The calcium ion has as charge Ca²⁺ and fluoride ion is F⁻, that means formula unit is:
CaF₂
b) 1 molecule of CaF₂ contains 2 anions, F⁻. Thus, the moles of CaF₂ is:
1.2x10²³ anions * (1 moleculeCaF₂ / 2 anions) = 6x10²² molecules of CaF₂
6.022x10²³ molecules = 1mol:
6x10²² molecules of CaF₂ * (1mol / 6.022x10²³molecules) = 0.10 moles CaF₂.
1 mole of CaF₂ has a mass of 78.07g:
0.10 moles CaF₂ * (78.07g / mol) =
7.81g of CaF₂ are present
Answer:
15.41.
Explanation:
- From the balanced equation:
<em>2SO₂(g) + O₂(g) ⇄ 2SO₃(g).</em>
<em />
The equilibrium constant = Keq = [SO₃]²/[SO₂]²[O₂].
<em>∴ Keq = [SO₃]²/[SO₂]²[O₂]</em> = (0.56 mol/L)²/(0.344 mol/L)²(0.172 mol/L) = <em>15.41.</em>
Answer: 54%
When you do percent composition:
Mass/ total mass x100 = percent
