State the order in which the ions associated with a compound composed of potassium and bromine would be written in the chemical formula and the compound name.
Answer:
The answer is C
Explanation:
She should make the parachutes smaller in order to decrease the drag forces on the car and bring it to a stop 400 meters after crossing the finish line.
Answer:
The concentration of CH₃OH in equilibrium is [CH₃OH] = <em>2,8x10⁻¹ M</em>
Explanation:
For the equilibrium:
CO (g) + 2H₂(g) ⇄ CH₃OH(g) keq= 14,5
Thus:
14,5 = ![\frac{[CH_{3}OH]}{[CO][H_{2}]^2}](https://tex.z-dn.net/?f=%5Cfrac%7B%5BCH_%7B3%7DOH%5D%7D%7B%5BCO%5D%5BH_%7B2%7D%5D%5E2%7D)
In equilibrium, as [CO] is 0,15M and [H₂] is 0,36M:
14,5 = ![\frac{[CH_{3}OH]}{[0,15][0,36]^2}](https://tex.z-dn.net/?f=%5Cfrac%7B%5BCH_%7B3%7DOH%5D%7D%7B%5B0%2C15%5D%5B0%2C36%5D%5E2%7D)
Solving, the concentration of CH₃OH in equilibrium is:
<em>[CH₃OH] = 0,28M ≡ 2,8x10⁻¹ M</em>
I hope it helps!
Mass number = proton number+ neutron number
m=92+143
=235