Final answer:
Yes, 1 mL and 2 kg can be in the same type of unit through conversion, 7 in. 2 and 1 lb can relate to each other via density, and 3 h and 11 min can be easily converted to the same time unit.
Step-by-step explanation:
The question pertains to unit conversion within different measurement systems. First, can 1 mL and 2 kg be in the same unit? Yes, they both can be expressed in units of volume or mass, but they represent different physical quantities, one is a volume, and the other is a mass. Milliliters (mL) are a unit of volume in the metric system, whereas kilograms (kg) are a unit of mass. However, if you want to compare them in the same type of unit, you would have to convert kg to a volume unit using the substance's density or mL to a mass assuming a density.
Next, can 7 in. 2 and 1 lb be in the same unit? Yes, you can use square inches (in. 2) and pounds (lb) to measure area and weight, respectively, and while they are not directly convertible since they measure different properties, you could use density to relate weight to an area depending on context. To convert both to a common system like the metric system, we would convert inches to centimeters and pounds to kilograms.
Lastly, can 3 h and 11 min be in the same unit? Absolutely, both hours (h) and minutes (min) are units of time. These can be easily converted to the same unit since 1 hour is equal to 60 minutes, so they are directly convertible into each other.