Please help me answer number 5 & 6 and please thoroughly explain the answers.

There are two identical, neutrally charged conducting cubes. Cube 1 is then charged so that it has a net charge of+6.4 x ll?\" C. BY 5. What is the value of the electric eld inside Cube 1? 6. If the cubes are allowed to touch how many electrons would be transferred? (show your work for partial Credit} electrons transferred