The mixture you separated was a mixture of iron filings, sand, and salt. based on your understanding of matter, is this mixture a homogenous mixture or heterogenous mixture? how do you know?

The pressure in car tires is often measured in pounds per square inch (lb/in.2), with the recommended pressure being in the range of 25 to 45 lb/in.2. suppose a tire has a pressure of 27.5 lb/in.2 . convert 27.5 lb/in.2 to its equivalent in atmospheres.