Not good. Likely will require a replacement. The liquid in a car type battery is an acid that is pretty much freeze-proof under normal temperature ranges seen in most climates, as long as the battery is FULLY CHARGED. However, if the battery is discharged or in a low charge state, the electrolyte can freeze. A hard freeze will damage a battery and drastically reduce its capability to hold a charge.
No, because if it is frozen it will not take a charge.
This sounds like your battery.
Jump it, it will either start or it wont
No, a car battery does not have mercury in it. It would be very dangerous to have mercury in a car battery.
there are lots more amps in a car battery eg there about 1.5 in a flash light and in a car battery there about 300 A car battery is a wet cell battery and a flashlight battery is a dry cell battery.
you can take out the battery....
It's fine, if you want you car to look like this: http://i6.photobucket.com/albums/y241/spoman/My%20car%20blew%20up/100_2174.jpg
No merc is not in a car battery
Do not perform a jump start if either car's battery is leaking, cracked, or swollen, as this poses a risk of battery explosion or harmful acid exposure. Additionally, avoid jump-starting if the battery is frozen, as this can cause further damage. Always ensure that both batteries are of the same voltage and compatible before attempting a jump start. If unsure, consult a professional for assistance.
You can get a new battery, you can jump start the car with jumper cables and another car with a charged battery. You can also put a battery charger on your battery to give it a charge.
A car battery's function is to store electrical energy for your vehicle. When you start the car the stored energy in the battery turns your car over and once your car starts the alternater will power everything and recharge the battery.
If your car has a battery and it's dead, you can call a friend who has some jumper cables. You can hook the jumper cables up to his battery and your car's battery. It should create electricity that will renew your battery. If your car does not have a battery, you would have to push it or get it towed.