When fireworks explode, they give off light and heat. What forms of evidence
suggest a chemical change has taken
place?

Answer is in the file below

cutt.ly/tz3yDpb

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".

a corroding iron, if that's one of your choices