Please help with practice problems.

Question 'I : If two capacitors, C1 and 02, are connected in series, and 01:302. Circle the correct answer(s): A. Q1Qg U1=1I3U2 C. (11:02 U2=3U1 D. Q1=Q2 U2=1I3U1 Question 2 : If two capacitors, 01 and C2, are connected in parallel, and 01:3/402. Circle the correct answer(s): A. U1=U2 01:4/3Q2 B. U1=U2 Q1=3I4Q2 C. U1U2 01:402 Question 3 : A parallel-plate capacitor has a plate area of 10 cm2 and a plate separation of 0.6 mm. It a voltage of 120 V is applied across the plates, what is the capacitance of the capacitor and the energy stored in the electric field