Answer:
Rusting metal can: Chemical
Boiling water: Physical
Crushing aspirin: Physical
Exploding nitroglycerin: Chemical
Answer:
yes they are I studied for two whole days like non stop its stressful
Use the rule of 3:
750g (3/4kg) = 156p
1000g = Xp
(1000 * 156) / 750
156,000 / 750
208.
Answer:

Hope it helped,
Happy homework/ study/ exam!
Solar energy sources would have the least ecological imoact
Yes this does work
Hope this helps^