Which equation shows a decomposition reaction? ŏ o A B C D CH +0 → CO + H₂O, 4(g) 2(g) 2(g) 2 CaO (,) + CO2(e) Mg(s) +0. 2(g) CaCO3(s) → →>> MgO (s) PbCO, PbO (s) 3(s) + CO2(g) ooooooo

Balance the cquation C,H18() + 0>(g)→ CO,(g) + H;O(g) CO,(g) + H,0(g)

In a blast furnace, coke, which is solid carbon, reacts with O2(g) to form carbon monoxide. The carbon monoxide then reacts with Fe2O3(s) to produce solid iron and carbon dioxide. Which of the following is the balanced equation for this combined process? O2 Fe2O3(s) + 3 C(s) + 3 02(g)->2 Fe(s) + 3 CO2(g) O2 Fe2O3(s) + 2 C(s) + 3 02(g)-> 4 Fe(s) + 2 CO2(g) O2 Fe2O3(s) + 6 C(s) + 3 02(g)--> 4 Fe(s) + 6 CO2(g) O2 Fe2O3(s) + C(s) + 3 O2(g) -> Fe(s) + CO2(g)

The chemical equations below show reactions similar to those you have met already. One of them is balanced correctly, and three are not. Identify which one is correctly balanced. State why.  - 4 Fe (s) + 3 O2 (g) = 2 Fe2O3 (s) - Mg (s) + O2 (g) = 2 MgO (s) - 2 K (s) + 2 O2 (g) = 2 K2O (s) - 2 Na (s) + H2O (l) = 2 NaOH + H2 (g)

Balance the chemical equation below using the smallest possible whole number stoichiometric coefficients. ? Br₂ (1) + 1₂ (s) → IBr; (g) X On Ś 8

Nitric acid can be formed in two steps from the atmospheric gases nitrogen and oxygen, plus hydrogen prepared by reforming natural gas. In the first step, nitrogen and hydrogen react to form ammonia: N,(0) + 3 H,(9) → 2 NH,(9) ΔΗ-92. k In the second step, ammonia and oxygen react to form nitric acid and water: NH,(9) + 20,(9) → HNO3(g) + H,O(g) AH=-330. kJ Calculate the net change in enthalpy for the formation of one mole of nitric acid from nitrogen, hydrogen and oxygen from these reactions. Round your answer to the nearest kJ. ?

(c) Ba(CIO3)2 → BaCl2 + O2 Reaction type: (d) CrCl3+ AGNO3 Cr(NO3)3+ ABCI Reaction type: (e) H2O2 H2O + O2 Reaction type:

Balance the following equation. If the coefficient is "1," you must enter the 1. C2H5NH2(1) + 02(g) --> CO2(g) + H20(1) + N2(g)

When heated, metal hydroxides decompose to produce a metal oxide and water. Selected the correct balanced equation for the decomposition of calcium hydroxide.     CaOH (s) → CaO2 (s) + H2O (g)     Ca(OH)2 (s) → CaO (s) + H2O (g)     2 CaOH (s) → 2 CaO (s) + H2O (g)     3 Ca(OH)2 (s) → 3 CaO2 (s) + H2O (g)

Hello, I need help understanding how to properly balance this equation.