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Elanso [62]
3 years ago
10

Which chemical equation is balanced?

Chemistry
1 answer:
melomori [17]3 years ago
6 0

D. MgO + 2HCI – MgCl2 + H20

<h3>Further explanation</h3>

The chemical equation is said to be balanced if the number of atoms in the reactants is equal to the number of atoms in the product

A. CaO2 + HCl → CaCl2 + H20

atoms O, Cl and H are not the same

B. CO2 + H2O + H2CO2

atoms O are not the same

C. K+ H2O → K20 + H2

atoms K are not the same

D. MgO + 2HCI – MgCl2 + H20

Mg, left = 1, right=1

O, left=1, right=1

H, left=2, right=2

Cl, left=2, right=2

Chemical equation is balanced

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Phosphoglucoisomerase interconverts glucose 6‑phosphate to, and from, glucose 1‑phosphate.
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Answer:

Keq = 0.053

7.3 kJ/mol

Explanation:

Let's consider the following isomerization reaction.

glucose 6‑phosphate ⇄ glucose 1 - phosphate

The concentrations at equilibrium are:

[G6P] = 0.19 M

[G1P] = 0.01 M

The concentration equilibrium constant (Keq) is:

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Keq = 0.01 / 0.19

Keq = 0.053

We can find the standard free energy change, ΔG°, of the reaction mixture using the following expression.

ΔG° = -R × T × lnKeq

ΔG° = -8.314 J/mol.K × 298 K × ln0.053

ΔG° = 7.3 × 10³ J/mol = 7.3 kJ/mol

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