Chemistry
Related Questions
Preparation of hydrogen
[Laboratory method]By action of dilute acid on zinc 15. Zinc Zn + HCl ⟶ …………… + …………… [g] Preparation of hydrogen
[Industrial method - Bosch process]16. Step I - Production of water gas C + H2O ⟶ [ …………… + …………… ] - Δ (1000°C) 17. Step II - Reduction of steam to hydrogen by carbon monoxide CO + H2 + H2O ⟶ …………… + …………… [g] (450°C / Fe2O3) 18. Step III - Removal of unreacted carbon dioxide and carbon monoxide from the above mixture KOH + CO2 ⟶ …………… + …………… [g]
CuCl + CO + H2O ⟶ ……………Tests and uses of hydrogen Conversion of hydrogen to 19. Water H2 + O2 ⟶ …………… 20. Hydrogen chloride H2 + Cl2 ⟶ …………… 21. Ammonia N2 + H2 ⇌ …………… 22. Hydrogen sulphide H2 + S ⟶ …………… Hydrogen in metallurgy - reduction of 23. Zinc oxide ZnO + H2 ⟶ …………… + …………… 24. Iron [III] oxide Fe2O3 + H2 ⟶ …………… + …………… What do the following symbols [or formula] denote : 2H ; H2 ; H+. [two atoms, molecule, ion]
Write correctly balanced equation for the following 'word equation' :
calcium + water ⟶ calcium hydroxide + hydrogen