<span>Volume = pir^2h = 36pih
Derivative = 36pi dh/dt
v' = 2 m^3/min
2 = 36pi dh/dt
dh/dt = 0.0177 m/min.</span>
Yes. Percent yield shows how efficient one's method is. If his isolated caffeine proved to be at only 1.5%, compared to least 50% as in many of the previous experiments, the student should be very concerned as it shows that something caused the yield to sharply drop.
Answer:
d- it is an acid because it increases the concentration of hydronium ions
Explanation:
HCl; hydrochloric acid is an acid because it increases the concentration of hydronium ions when in solutions.
An acid is a substance that interacts with water to produce excess hydroxonium ions H₃O⁺ in an aqueous solution.
For example:
HCl + H₂O → H₃O⁺ + Cl⁻
HCl is classified as a strong acid due to its complete ionization when in solutions.
I am guessing you want us to balance this equation so.
To balance, we add another molecule of HCl to the left side of the equation and another molecule of water (H20) to the right side of the equation to give:
<span>Mg(OH)2 + 2HCl = MgCl2 + 2H20 </span>
This is what I got. Hope it helps :)
