Hydrogen cyanide can be prepared by the reaction: CH4 (g) + NH3 (g) →HCN (g) + 3H2 (g)

What is the heat of reaction at constant pressure? Use the following thermochemical equations:

N2 (g) + 3H2 (g)→ 2NH3 (g); Δ\DeltaΔ H = -91.8 kJ
C (graphite) + 2H2 (g) →CH4 (g); Δ\Delta Δ H = -74.9 kJ
H2 (g) + 2C (graphite) + N2 (g)→2HCN (g); Δ \Delta Δ H = 270.3 kJ

Reaction type : double replacement hcl + lioh = h2o + licl

Hello,#agreed with joseph002.i got my source also from  source: hope this

According to arrhenius theory of acid and bases, an acid is a proton donor, while base donates hydroxyl ions. further, acid and base reacts to form salt and water.consider following example.hcl    +      h2o          →      cl-          +      h3o+here, hcl has donated a proton, hence it is an acid.now consider following reactionhcl      +      naoh            ↔      nacl      +        h2oin this reaction, hcl donates proton, hence it is acid. on other hand, naoh donates hydroxyl ion (i.e. hence it is a base.