Your answer is in the question! A gallon container will hold a gallon of anything, including water, air, rocks, lava, peanuts, marbles...etc. Also, a gallon of water weighs about 8 pounds.
1 Gallon.
Half a gallon
No, a gallon size plastic freezer bag cannot hold a gallon of water. The bag itself takes up space, decreasing the amount of water it can hold. Additionally, a gallon of water weighs about 8.34 pounds, which could put too much strain on the bag's capacity.
2
not that much
about $95.000
Exactly 30 US gallon.
A two inch pipe can hold 0.1632 gallons per foot. It takes slightly over 6 feet of two inch pipe to hold one gallon of water.
Depends on the tub, but usually about 40-50 gallons.
A 20 Gallon tank can hold up to 20 gallons of water.
it depends on what you hold it in
1 gallon of antifreeze mixed 50/50 with 1 gallon of distilled water will be enough to fill the system.