Question

1 kilogram is the mass of 1 litre of ...........at 4⁰ C.​

Answer 1

Answer:

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One litre of water has a mass of almost exactly one kilogram when measured at its maximal density, which occurs at about 4 °C. It follows, therefore, that 1000th of a litre, known as one millilitre (1 mL), of water has a mass of about 1 g; 1000 litres of water has a mass of about 1000 kg (1 tonne).

Answer 2

Answer:

Answer. One litre of water has a mass of almost exactly one kilogram when measured at its maximal density, which occurs at about 4 °C.