Final answer:
The mass of the largest stone jar on the Plain of Jars in Laos can be expressed as 6.0 x 10^9 milligrams.
Step-by-step explanation:
To express the mass of the largest stone jar in milligrams, we need to convert the given mass from kilograms to milligrams. There are 1,000,000 milligrams in a kilogram. Therefore, to convert 6.0 x 10³ kg to milligrams, we multiply it by 1,000,000:
6.0 x 10³ kg = 6.0 x 10³ kg x 1,000,000 mg/kg = 6.0 x 10³ x 1,000,000 mg = 6.0 x 109 mg
Learn more about Converting kilograms to milligrams