Final answer:
To convert 0.654 grams to milligrams, we have to multiply the amount in grams (0.654) by 1000; hence, 0.654 grams is equal to 654 milligrams.
Step-by-step explanation:
To convert 0.654 grams to milligrams, we need to understand the relationship between the two units. Since 1 gram is equal to 1000 milligrams, converting from a larger unit (grams) to a smaller unit (milligrams) requires multiplication.
So, the conversion would look like this:
0.654 g × 1000 = 654 milligrams
Therefore, 0.654 grams is equal to 654 milligrams.