Which equation represents a combustion reaction? Pb(NO3)2 + 2HCl → PbCl2 + 2HNO3 2SO2 + O2 → 2SO3 2C2H6 + 7O2 → 4CO2 + 6H2O Ca +
2 answers:
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Answer:
A) a = 2.31[m/s^2]; B) t = 14.4 [s]
Explanation:
We can solve this problem using the kinematic equations, but firts we must identify the data:
Vf= final velocity = take off velocity = 120[km/h]
Vi= initial velocity = 0, because the plane starts to move from the rest.
dx= distance to run = 240 [m]
To find the time we must use another kinematic equation.
Answer:
Vapors
Explanation:
We take into account that all the energy from the lightning has been transformed into steam.
We calculate the amount of energy required by water to convert into steam.
From the lightning we received of energy, out of which
has been used to convert the water into steam.
Energy left =
We use this energy to convert steam into vapors.
With this temperature, we can easily interpret that the vapors will be dissociated in hydrogen and oxygen particles.