Glass is prepared by hearing sand with limestone and washing soda 8. _SiO2(s) + _ CaCO3(s) CaSIO3(s) +Co2(g) ? 9. _ SiO2 (s) + _ Na2CO3(s) Na2SiO3 +_ CO2 (g) ?

1 Answer
devi f.
Mar 6, 2018

Both reactions are a simple double replacement reaction, so coefficients are 1.

Explanation:

A double replacement reaction is one where the positive iones and the negative ions of the two compounds switch places.

#A^+ B^-# + # C^+D^- #→ #A^+ D^- + C^ +B ^-#

#SiO_2 + CaCO_3 = CaSiO_3 + CO_2#
#SiO_2 + Na_2CO_3 = Na_2SiO_3 + CO_2#

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