Copper II sulfate solution is blue.
combustion is when you burn something in presence e of oxygen and the products will be mainly the CO2 and H2O
Answer:
Common combustion reactions break the bonds of hydrocarbon molecules,
Explanation:
the resulting water and carbon dioxide bonds always release more energy than was used to break the original hydrocarbon bonds. That's why burning materials mainly made up of hydrocarbons produces energy and is exothermic.
