Yes. This is a regular substitution. The previous batter is out of the game and the new batter assumes the previous count
Yes
Yes you can change sides at any time during your at bat.
no
Yes. A switch-pitcher is allowed to change hands during an at-bat. At the start of the at-bat, the pitcher must declare which arm he will throw with so the batter can determine which side of the plate he will bat at. Each player may switch sides one time during the at-bat and must make this known to the umpire-in-chief before-hand.
Yes
noWrong!! The batter may switch sides of the plate as long as the pitcher is not on the rubber prepared to pitch. He could switch several times during the at-bat.
Yes, the hitter coming in would just have to assume the original hitters count.
Switching Sides of PlateYou are not allowed to switch sides of the plate once the first pitch of the at bat has been delivered
There any many different reasons players go through bats. The first being obviously breaking the bat. Secondly, some players are streak hitters, meaning they stick with the same bat during the streak, and switch once the streak has ended. A lot of players switch bats frequently based on make on model to find the bat the fits them best. Some players use as little as 30 bats during the course of a year, others can rotate thru hundreds of bats through the course of the year.
Yes
Yes. The batter may bat from whichever side he/she chooses with whatever bat he/she chooses. However, once the pitcher is on the pitching rubber the batter may not switch sides nor bats until after that pitch.
Yes, usually this is done when a new pitcher comes in during the same at-bat and throws with the opposite arm.