indications of a reaction Flashcards by Prishita mehta :] | Brainscape

Q

change of color

A

mercury{2}oxide
2hgo → 2hg + o2 [red silv]

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Q

evolution of gas

A

zn + hcl → zncl2 + h2

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Q

exothermic endothermic

A

cao + h2o → ca[oh]2 +△ex
n2 + o2 → 2no -△ ed

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Q

formation of precipitate

A

agno3 + hcl → hno3 + agcl

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