Question

what is ment by the signs (⬇)&(⬆) in a chemical reaction

Answer 1

upward sign shows the gas that liberated in rkn and downward sign show the prectipitate

Answer 2

Thus so

THE SIGN ⬇ INDICATES THAT A PRECIPITATE HAS BEEN FORMED IN THE CHEMICAL REACTION

EG

BACL + NASO4 ➡ BASO4 ⬇ + NACL

WHERE BASO4 IS PRECIPITATE

THE SIGN ⬆ INDICATES THAT A GAS IS BEEN LIBERATED

EG

CA + HCL ➡ CACL2 + H2 ⬆

HYDROGEN GAS LIBERATED

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