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surface tension this is the answer mark as brailiest
The cohesive forces between liquid molecules are responsible for the phenomenon known as surface tension. ... Equivalently, it can be stated as surface energy in ergs per square centimeter. Water at 20°C has a surface tension of 72.8 dynes/cm compared to 22.3 for ethyl alcohol and 465 for mercury.
The density of water is the weight of the water per its unit volume, which depends on the temperature of the water. The usual value used in calculations is 1 gram per milliliter (1 g/ml) or 1 gram per cubic centimeter (1 g/cm3). ... The maximum density of water occurs around 4 degrees Celsius.
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