which equation best represents the ionic reation that occurs when a copper wire is dipped into a silver nitrate solution

Chemistry

1 answer:

SpyIntel [72]3 years ago

8 0

Answer: The ionic reaction is written below.

Explanation:

Complete ionic equation is defined as the equation in which chemical species are written in the form of ions. All the spectator ions are present in this equation.

The chemical equation for the reaction of copper with silver nitrate is given as:

$Cu(s)+2AgNO_3(aq.)\rightarrow Cu(NO_3)_2(aq.)+Ag(s)$

Ionic form of the above equation follows:

$Cu(s)+2Ag^+(aq.)+2NO_3^-(aq.)\rightarrow Cu^{2+}(aq.)+2NO_3^-(aq.)+Ag(s)$

This equation is known as single displacement reaction in which more reactive element displaces a less reactive element from its chemical reaction.

Hence, the ionic reaction is written above.

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Calculate the fraction of atoms in a sample of argon gas at 400 K that have an energy of 12.5 kJ or greater. Report your answer

emmainna [20.7K]

Answer:

0.023

Explanation:

The Arrhenius' equation states that:

$k = A*e^{\frac{-Ea}{RT}$

Where k is the velocity constant of the reaction, A is the constant of the collisions, Ea is the activation energy (the energy necessary to the molecules have so the reaction will happen), R is the gas constant (8.314 J/molK) and T is the temperature.

This equation is derivated of:

k = pZf

Where

p=fraction of collisions that occur with reactant molecules properly oriented

f=fraction of collisions having energy greater than the activation energy

Z=frequency of collisions

Thus, p*Z = A, and

f = $e^{\frac{-Ea}{RT} }$