Final answer:
There are 0.5 liters in 500 milliliters. To convert milliliters to liters, divide the number of milliliters by 1,000.
Step-by-step explanation:
To answer the question, 500 milliliters is equivalent to how many liters, we have to understand the conversion between milliliters and liters. There are 0.5 liters in 500 milliliters. To convert milliliters to liters, divide the number of milliliters by 1,000. One liter is equal to 1,000 milliliters, as per the metric system.
Therefore, converting from a smaller unit (milliliters) to a larger unit (liters), we divide by 1,000. When we divide 500 milliliters by 1,000, the result is 0.5 liters. There are 0.5 liters in 500 milliliters. To convert milliliters to liters, divide the number of milliliters by 1,000. So, the correct answer is C. 0.5 L.