Chemical Equations

Flashcards for Chemical Equations from Class X NCERT Science Textbook Chapter 1

Magnesium burning in air

2 Mg + O2 → 2 MgO

Carbon monoxide reacts with hydrogen gas to form liquid methanol.

CO + 2H₂ → CH₃OH

Oxidation of copper in air

2 Cu + O2 → 2 CuO

Iron reacts with copper(II) sulfate

Fe + CuSO4 → FeSO4 + Cu

Lead reacts with copper(II) chloride

Pb + CuCl2 → PbCl2 + Cu

Equation of Photosynthesis

6CO₂ + 12H₂O —[chlorophyll, sunlight]→ C₆H₁₂O₆ + 6O₂ + 6H₂O

Burning of Natural Gas

CH₄ + 2O₂ → CO₂ + 2H₂O

Equation of Respiration

C₆H₁₂O₆ + 6O₂ → 6CO₂ + 6H₂O + energy

Zinc reacts with sulfuric acid

Zn + H2SO4 → ZnSO4 + H2↑

Zinc reacts with hydrochloric acid

Zn + 2 HCl → ZnCl2 + H2↑

Copper(II) oxide reacts with hydrogen

CuO + H2 → Cu + H2O

Barium chloride reacts with sodium sulfate

BaCl2 + Na2SO4 → BaSO4↓ + 2 NaCl

Thermal decomposition of ferrous sulfate

2 FeSO4Δ → Fe2O3 + SO2 + SO3

Lead Nitrate reacts with potassium iodide

Pb(NO3)2 + 2KI → PbI2 +2K(NO3)

photodecomposition of Silver Bromide

2AgBr—[sunlight]→ 2Ag + Br₂

Thermal decomposition of lead nitrate

2 Pb(NO3)2Δ → 2 PbO + 4 NO2 + O2

Thermal decomposition of calcium carbonate

CaCO3Δ → CaO + CO2

Photodecomposition of silver chloride

2 AgCl☀ → 2 Ag + Cl2

Calcium oxide with water

CaO + H2O → Ca(OH)2