Answer: Thus the value of is 110.25
Explanation:
Initial moles of = 0.500 mole
Initial moles of = 0.500 mole
Volume of container = 1 L
Initial concentration of
Initial concentration of
equilibrium concentration of [/tex]
The given balanced equilibrium reaction is,
Initial conc. 0.500 M 0.500 M 0 M
At eqm. conc. (0.500-x) M (0.500-x) M (2x) M
The expression for equilibrium constant for this reaction will be,
we are given : 2x = 0.84 M
x= 0.42
Now put all the given values in this expression, we get :
Thus the value of the equilibrium constant is 110.25
The answer is (1) the reaction is exothermic because it releases heat. From the reaction, we can see that the heat is at the right of the equation which means the reaction releases heat. So it is called exothermic reaction. Endothermic reaction absorbs heat.
Answer
6.9 x 10¹²Hz
Explanation:
Given parameters:
Wavelength of the wave = 4.35 x 10⁻⁵m
Unknown:
Frequency of the wave = ?
Solution:
The speed of a wave is related to the wavelength and frequency using the expression below;
C = Fλ
C is the speed of light = 3 x 10⁸m/s
F is the frequency
λ is the wavelength
Insert the given parameters and solve;
3 x 10⁸ = F x 4.35 x 10⁻⁵
F = = 6.9 x 10¹²Hz
I think it is D, halogens have a full outer shell of valence electrons :)) hope I helped
Answer:
Burning a match... i'm pretty sure.
Explanation:
All the other are phisical changes while Fire is a chemical reaction.