jmoya2

what is the answer to E and how do you do the work? please help it’s urgent

b) Write the equation for the half reaction that occurs at the cathode. Describe qualitatively what you would observe in the region around the cathode.

e) determine the mass of the substance produced at the anode if an electron flow of 3.50 A is applied for 2:00h:

The 644-N force is applied to the 112-kg block, which is stationary before the force is applied. Determine the magnitude and direction of the friction force F exerted by the horizontal surface on the block. The force is positive if to the right, negative if to the left.

 Calculate E°cell and indicate whether the overall reaction shown is spontaneous or nonspontaneous. 3 pts

       (s) + 2e- 2I-(aq); E°= 0.53 V
     C (aq) + 3e- Cr(s); E°= -0.74 V

Overall reaction:
2Cr(s) + 3 (s) → (aq) + (aq) + 6I-(aq)

Need help with this one

Given f(x) = 4  (x), write the equation of the line tangent to y = k(h) when x =

When displacement B is added to displacement A the result is the displacement C that has components Cx= -3.0m Cy= 6.0m and Cz= 4.0m. displacement A and B are the same direction but the magnitude of A is only half that of B. Find the components of A

3. Use the information and table to answer the following question: A group of students are trying to determine whether a base is an Arrhenius base or a Bransted-Lowry base.

A base + salt  water + acid

b. salt + acid  base + water

c. salt + water  acid + base

D. base + acid  salt + water

For the function f(x) = , find the equation of the tangent tine at x = 8

Answer: __________

The aspherical balloon is filled with gas at 10m^3/hr. At the instant when the surface area of the ballon is increasing at 4m^2/hr. what is the radius of the balloon?