Answer:
Option C. 10m/s
Explanation:
Data obtained from the question include:
Wavelength = 5m
Frequency = 2Hz
Velocity =..?
Velocity of a wave is related to the wavelength and frequency by the following equation:
Velocity = wavelength x frequency
With the above equation, we can easily calculate the velocity of the ocean wave as follow:
Velocity = 5 x 2
Velocity = 10m/s
From the calculation made above, we can see that the velocity of the ocean wave is 10m/s.
Answer:
Ksp = 2.74 x 10⁻⁵
Explanation:
The solubility equilibrium for Ca(OH)₂ is the following:
Ca(OH)₂(s) ⇄ Ca²⁺(aq) + 2 OH⁻(aq)
I 0 0
C + s + 2s
E s 2s
According to the ICE table, the expression for the solubility product constant (Kps) is:
Ksp = [Ca²⁺] x ([OH⁻])² = s x (2s)² = 4s³
Then, we calculate Ksp from the solubility value (s):
s = 0.019 M
⇒ Ksp = 4s³ = 4 x (0.019)³ = 2.74 x 10⁻⁵
Answer:
C(i) the elements are lead (Pb), nitrogen (N) oxygen (O). Lead is found as the Pb 2+ ion and nitrogen and oxygen form the nitrate ion NO 3 –. Its chemical formula is Pb (NO 3) 2.
C(ii) is +2 because the oxidation state of lead is +2. More Lead (II) trioxonitrate(v) is composed of lead ion and the nitrate ion.
I hope this helped
A blizzard will cause white out conditions so you can't see, it will also cause black ice so a person or vehicle will slip. The heavy snow will hang on wires and branches causing them to break.
