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Answer: the basic difference is Exergonic reactions release energy and an endergonic reactions absorb energy .
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<h3><u>Answer and explanation</u>;</h3>
- To balance the charges of ions the number of electrons lost is equal to the number of electrons gained. The overall net charge must be zero.
- The number of ions needed to accomplish this is represented by the subscripts.
- For any given ionic compound, the product of the charge on the ion (or multiatomic ionic group) times the subscript of the ion will give a total charge of zero when all ions are considered.
For examples: NaCl Na = +1 Cl = -1 total is zero
Given the equation <span>aA + bB → cC + dD, which is an irreversible reaction, the most common rate laws are the product of the concentration of the reactants, each raised to a power.
This is the the general form of such laws.
r = K [A]^m * [B]^n
The order of the reaction is the sum of the exponents: m + n.
For first order reaction m+ n = 1, yields to the next potential laws:
m = 1, n = 0 => r = k [A]
m = 0, n = 1 => r = k [B]
m=0.5, n = 0.5 => r = [A]^0.5 [B]^0.5
And other combinations where the sum of the exponents are 1.
For second order reactions, m + n = 2, these are some potential laws:
m = 1, n = 1 => r = k[A][B]
m=0, n = 2 => r = k[B]^2
m=2, n = 0 => r = k[A]^2
m=1.5, n = 0.5 => r = k[A]^1.5 [B]^0.5
As you see there are many potential laws all of them with the form
r = [A]^m [B]^n, being the order of the reaction m + n
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It can be used to cut diamonds or steel
