Answer:
One positive charge
Explanation:
In a neutral atom, the number of positive and negative particles are equal. This leaves the atom with a net charge of zero, 0.
When the number of protons in an atom is greater than the number of electrons, the atom becomes positively charged. When an atom loses an electron when a bond wants to form, it has a net positive charge.
The number of electrons lost or gained determines the charge.
The answer is:
The rate constant K2 = 1.9 x 10^-4 1/s
The explanation:
According to Arrhenius equation:
ln(k₁/k₂) = Ea/R (1/T₂ - 1/T₁)
when K is the rate constant
and Ea is the activation energy
R is the ideal gas constant
T1 & T2 is a temperature at kelvin
when we have:
Ea = 272 KJ = 272000 J
R is the ideal gas constant 8.3145 J/Kmol
K1 = 2.3 x 10^-5 1/s K2 = ?? that is we need to calculate
T1 = 718 K T2 =753 K
So by substitution:
ln(k₁/k₂) = Ea/R (1/T₂ - 1/T₁)
㏑(2.3X10^-5/K2) = [272000/8.314](1/753-1/718)
∴ K2 = 1.9 x 10^-4 1/s
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