Answer:
-You are a citizen of the United States: You're voting for a person who is going to be in a position to have power in the United States, so they want you to have the mindset that you are going to vote what is best for our country.
-You will be at least 18 years old on or before the day of the next general election. (If you will be 18 on or before the general election, you may vote in the primary election to nominate candidates, but you cannot vote on issues or party central committees until you are 18): The reason is that they feel young people under 18 lack the ability and motivation to participate effectively in the electoral process
You will be a resident of Ohio for at least 30 days immediately before the election in which you want to vote- If you're voting for a position in the Ohio "court" they would like you to be from Ohio so you're voting for the purpose of what you think is going to be best for the state. Also in elections such as the presidential election they count by state.
You are not incarcerated (in prison or jail) for a felony conviction under the laws of this state, another state, or the United States: Kind of common sense on this one. If you are convicted of a crime such as kidnapping you probably don't have the right state of mind to be voting.
You have not been declared incompetent for voting purposes by a probate court; and- you need to be in a good state of mind and mentally there to vote
You have not been permanently disenfranchised for violating the election laws- if you have broken the election laws by cheating for going against the rules etc they do not allow you to vote, for the reason that you will most likely do it again