Experiments with cathode rays being deflected by a magnetic field
show that cathode rays are composed of particles that are
a. magnetic.
b. negatively charged.
c. positively charged.
d. neutral in charge

Change in speed or direction : )

Answer(28.02g/mol);

Deposition  is  change of state has the wrong energy change listed 

Answer:             1.0  × 10⁻⁵ msolution:                     as we know ph is given as,                                    ph  = -log [h⁺]and,                                    [h⁺]  =  10^-ph    (1)putting value of ph in eq. 1,                                    [h⁺]  =  10⁻⁵                                    [h⁺]  =  1.0  × 10⁻⁵ m