Calculation process:

Because 1 kg =2 kg, 1 kg = 1000 g.

So 2 kg = 1000 g, 1 kg =500 g.

Because 1 kg = 10.

So what? 10 Liang = 500g, 1 Liang = 50g.

Extended data:

The unit of weight has a long history. In ancient times, all countries had their own units of measurement. China ancient unit of weight, Jun: 30 kg is one jun; A dozen guineas weigh one baht, 24 baht, 12 pounds.

China has specific units of measurement, such as international kilograms and tons, American and British pounds and so on.

There is no "Jin" in the international standard unit, which is a unit in China. Secondly, units such as "Jin" and "kg" obviously belong to the units of weight in physics, but they are by no means units of mass. Please make clear the difference between quality and weight. Thirdly, from the perspective of law and life, China's laws clearly stipulate that units such as "Jin" and "kg" can be used as quality units in various occasions, and quality = weight, which is legally equivalent and has legal effect.

Reference link: Baidu Encyclopedia-weight unit