Question

How can you test the strength of a solid

Answer 1

$HCO_3^-$ ions we get a precipitate of K₂Ca(CO₃)₂(d) Manganese salts give a violet borax bead test in the reducing flame

Answer 2

HCO3

−

ions we get a precipitate of K₂Ca(CO₃)₂(d) Manganese salts give a violet borax bead test in the reducing flame