None, a car battery is lead-acid, not alkaline.
The acid in a standard AA battery is not overly harmful. It is not as strong as the acid from a car battery. The main concern would be eating the battery acid. However, if it touches your skin just wash it off. Honestly over-exposure to sunlight hurts the skin more.
You can recharge a AA battery if it is a rechargeable battery like the 12 volt battery in your vehicle. You can buy a rechargeable AA battery or one that is not rechargeable they just cost more money.
A good AA battery has about 1.5 volts across it.
An AA battery will sink in water.
What are the ingredients in a AA battery?
No.
A battery acid is a variety of acid used as an electrolyte in a battery - usually sulphuric acid.
UM 3 is a battery size used in Japan, corresponding to the AA of the more common standard.
1947
3 AA batteries provide about 4.5 volts. The amps depend on the load but for D-cells a load of 10 amps can be sustained for short periods.
Yes it is you can use that or Lead Acid for battery acid. Good question.