Why is melting ice a physical change? The process can be undone.

The process moves atoms into permanent places.

The process releases energy.

The process creates a new compound.

Explanation:

1. or .4

he uptake of drugs from the intestine is often strongly influenced by diffusion. for example, consider a water-insoluble steroid for treating inflammation that is solubilized in aggregates of detergent molecules, called micelles. these micelles, aggregates of 80 soap molecules, have a molecular weight of 24,000, a diameter of 2.6 nm, and a charge of -27. the positively charge ions (counterions) in this system are na".