Answer:
Rusting metal can: Chemical
Boiling water: Physical
Crushing aspirin: Physical
Exploding nitroglycerin: Chemical
Answer:
There are four main types of chromatography. These are Liquid Chromatography, Gas Chromatography, Thin-Layer Chromatography and Paper Chromatography. Liquid Chromatography is used in the world to test water samples to look for pollution in lakes and rivers.
Answer:chứng minh lim qn=0 khi n tiến đến dương vô cùng nếu trị tuyệt đối của q<1Explanation
A is the answer because it is eligil and black beans