40000
The units are incompatible.
40000 units of what? without some known value to give an equivalence betweem 'units' and mg this cannot be answered.
no
8
It depends on the substance. Mass (mg) and volume (cc) are different things and use different units.
1 gram = 1000 milligrams so 0.2 g = 200 mg
There are 1000 milligram that equal to one gram, therefore, 2000 milligrams would equal 2 grams.
It depends on 0.5 measured in what units. The number of 0.5 grams in 2 mg will be different from the number of 0.5 nanograms, for example.
50000 iu
1000 mg = 1g 2000 mg = 2g
m means 'milli'. This is short for thousandth. Therefore there is 1000 mg in 1g. Therefore 2000 mg is equal to 2 g