Answer:
H3PO4 + H2O ↔ +
Explanation:
HNO3 → NO2 + H2O + O2
H2SO4 → SO3 + H2O + O2
The circles in the diagrams below represent energy levels in an atom, and the arrows show electron (blue dot) transitions from o
ne energy level to another. (the spacing between circles represents differences in energy: a larger spacing means a greater difference in energy.) assuming that the transitions occur as photons are emitted, rank the atoms based on the photon energy, from highest to lowest. hints
1 answer:
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Answer:
The answer to your question is d. 0.5 M
Explanation:
Data
[A] = 1M
K = 0.5
Concentration of B and C at equilibrium = x
Concentration of A at equilibrium = 1 - x
Equation of equilibrium
k =
Substitution
Simplification
0.5 =
Solve for x
0.5(1 - x) = x²
0.5 - 0.5x = x²
x² + 0.5x - 0.5 = 0
Find the roots x₁ = 0.5 x₂ = -1
There are no negative concentrations so the concentration of A at equilibrium is
[A] = 1 - 0.5
= 0.5 M