Question

Answer the questions.
no wrong answer plz!​

Answer 1

Answer:

(2) (A) CaCO3 +2HCl ➡️ CaCl2 +H2O +CO2

(B) Zn + H2SO4 ➡️ ZnSo4 + H2

(C) Na2CO3 + HCl➡️ NaCl + NaHCO3

(3) Thermit reaction

Fe2O3 + 2Al ➡️ 2Fe + Al2O3 + heat

Answer 2

Answer:

1. A. 2HCl+CaCO3→CaCl2+CO2+H2O.

B. Zn+H2SO4→ZnSO4+H2

C.Na2CO3+HCl→NaCl+NaHCO3

2.The thermite reaction is an exothermic reaction between the metal and metal oxide. For example the reaction between the aluminium with the metal oxides, where aluminium acts as a reducing agent. The aluminium reduces the metal oxide most probably an iron oxide to produce ferrous and aluminium oxide.