I am positive it is solar energy
A temperature change in a reaction indicates a chemical change
Answer:
Sodium is most reactive metal among these. Sodium is present in group one. It is alkali metal.
Explanation:
Please mark as brainliest
Answer:
actually word equation has the names and we need to write molecular formula in chemical eqn. so I don't think there is sort of trick.You just need to memorise the molecular formula of chemicals.