3. Identify the spectator ion(s) in the following reaction. Cu(OH)2(s) + 2H+ (aq) + 2Cl(aq) → Cu2+(aq) + 2Cl(aq) + 2H2O(1)
a. Cu2+ and CV
b. Cu2+
C. Cu(OH)2
d. CT
e. Ht and CT

Answer is e ht and ct

Answer//the law of conservation of mass.;

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