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8_murik_8 [283]
3 years ago
12

The atomic notation for a particular atom of boron is ' B. The

Chemistry
1 answer:
e-lub [12.9K]3 years ago
7 0

Answer:

5;11

Explanation:

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Two substances, A and B were made to react to form a third substance, A2B according to the following reaction 2A + B → A2B which
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I think option C is the correct answer for this

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IS ANYONE GOOD AT CHEMISTRY?! i need help please lol
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Explanation:

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Which unit can be used to express the concentration of a solution?
exis [7]

Answer: (3) ppm

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Parts per million (ppm) is used to express the concentration when a very small quantity of solute is present in a large quantity of the solution. It is defined as the mass of solute present in one milion (10^6) parts by mass of the solution.

ppm=\frac{\text {mass of Solute}}{\text {Mass of solution}}\times 10^6

L/s is used to express flow rate.

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4 years ago
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When scientist need to work on Sharks and some other fish in water they flip them upside down on their backs because
Zielflug [23.3K]

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4 0
3 years ago
In the citric acid cycle, malate is dehydrogenated to oxaloacetate in a highly endergonic reaction with a ΔG’o of +30 kJ mol-1:
Doss [256]

Answer :  The value of K_{eq} of this reaction is, 5.51\times 10^{-6}

At equilibrium, [L-malate] > [oxaloacetate]

Explanation :

The relation between the equilibrium constant and standard Gibbs free energy is:

\Delta G^o=-RT\times \ln K_{eq}

where,

\Delta G^o = standard Gibbs free energy  = +30 kJ/mol = +30000 J/mol

R = gas constant = 8.314 J/K.mol

T = temperature = 25^oC=273+25=298K

K_{eq}  = equilibrium constant  = ?

The given reaction is:

\text{L-malate}+NAD^+\rightleftharpoons \text{oxaloacetate}+NADH+H^+

\Delta G^o=-RT\times \ln K_{eq}

+30000J/mol=-(8.314J/K.mol)\times (298K)\times \ln K_{eq}

K_{eq}=5.51\times 10^{-6}

Therefore, the value of K_{eq} of this reaction is, 5.51\times 10^{-6}

As, the value of K_{eq} < 1 that means the reaction mixture contains reactants.

At equilibrium, [L-malate] > [oxaloacetate]

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