Answer:
4.54 % NaOH
Explanation:
Data:
Mass of NaOH = 11.6 g
Mass of water = 38.4 g
Mass of solution = 250.0 g
Calculation:
The displacement function is given by : r = bt2i + ct3j meters
The velocity function is the derivative of the displacement:
v = r' = 2bti + 3ct2j meter / second
Now, for <span> the velocity vector make an angle of 45.0∘ with the x- and y-axes, the i and j components have to be equal:
</span>2bt = 3ct2 (Now solve for t)
2bt = t (3ct)
either t = zero (rejected)
or t = 2b / 3c seconds (accepted)
the temperature, internal energy and kinetic energy
This is a difficult task because zinc is much more active than copper and could hardly be passivated. ... The sur- face immediately turns white (the color of copper(I) iodide) and the yellow-brown color of iodine quickly fades. Rinse the coin with water, brighten it with polish and cloth and begin the whole process again.N
Answer: sulfur, selenium, tellurium and polonium
Fact: The oxygen family is in group 16 of the perodic table.