Question

Studying the properties of acids and bases (HCl & NaOH) by their reaction with:
a) Litmus solution (Blue/Red)
b) Zinc metal
c) Solid sodium carbonate

Answer 1

HCL-

1) turns red
2) gives out H2 gas and forms zinc chloride.
3) liberates carbon dioxide gas

NaOH-

1) turns blue
2) forms H2 and sodium Zincate
3) 2NaOH+Na2CO3---> 4Na+CO2+2H2O