The capacity of a large bucket of water is18.9L, the weight of the bucket itself is 1-2 kg, and the density of water is1kg/L. According to the formula: mass = volume × density, so the mass of a bucket of water = 18.9kg=37.8 kg, plus

Because the density of water is 1, 1 liter of water is 1 kg, and the bucket of water dispenser is 18.9 liter of water, which is equal to 18.9 kg and 37.8 kg. A bottle of mineral water is almost 500ML, which is one catty, and a bucket of water dispenser is equal to more than 30 bottles of mineral water.

When the temperature rises to 3.98℃( 10 1.325kPa), most of the water molecules are (h? O)2 exists in the form of associated molecules, and the space occupied by molecules is relatively reduced, at which time the density of water is the largest. If the temperature continues to rise above 3.982℃, the law of general substances expanding with heat and contracting with cold will prevail.

When the water temperature drops to 0℃, water turns into ice. When water freezes, almost all molecules associate to form a huge associated molecule. The arrangement of water molecules in ice is that each oxygen atom has four hydrogen atoms as its neighbors and two hydrogen bonds. This arrangement leads to an open structure, and there are large gaps in the structure of ice, so the density of ice is inversely proportional to the density of water at the same temperature.