Classify the following reactions as decomposition, combination, displacement, or double displacement.
a) Cl2(g) +2NaBr(aq) → Br2 + 2NaCl (aq)
b) CaO(s) + H2O(l) → Ca(OH)2(aq)
c) Ni(NO3)2+2NaOH(aq)→Ni(OH)2↓+2NaNO3(aq)
d) 2CuO(s)→ 2Cu(s) + O2 (g)
e) 3MnO2 + 4Al → 3Mn + Al2O3

Question

02-05-2024
Chemistry

Answered

Classify the following reactions as decomposition, combination, displacement, or double displacement.
a) Cl2(g) +2NaBr(aq) → Br2 + 2NaCl (aq)
b) CaO(s) + H2O(l) → Ca(OH)2(aq)
c) Ni(NO3)2+2NaOH(aq)→Ni(OH)2↓+2NaNO3(aq)
d) 2CuO(s)→ 2Cu(s) + O2 (g)
e) 3MnO2 + 4Al → 3Mn + Al2O3

Answer :

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ibmibmian ibmibmian · Answer 1 · 2024-05-02T02:47:47-04:00

Answer:

a) This reaction is a displacement reaction, specifically a single displacement reaction. Chlorine (Cl2) displaces bromine (Br2) from sodium bromide (NaBr) to form sodium chloride (NaCl) and bromine gas (Br2).

b) This reaction is a combination reaction. Calcium oxide (CaO) reacts with water (H2O) to form calcium hydroxide (Ca(OH)2).

c) This reaction is a double displacement reaction. Nickel nitrate (Ni(NO3)2) reacts with sodium hydroxide (NaOH) to form nickel hydroxide (Ni(OH)2) and sodium nitrate (NaNO3).

d) This reaction is a decomposition reaction. Copper(II) oxide (CuO) decomposes into copper (Cu) and oxygen gas (O2).

e) This reaction is a decomposition reaction. Manganese dioxide (MnO2) decomposes into manganese (Mn) and aluminum oxide (Al2O3).

Explanation:

Classify the following reactions as decomposition, combination, displacement, or double displacement. a) Cl2(g) +2NaBr(aq) → Br2 + 2NaCl (aq) b) CaO(s) + H2O(l) → Ca(OH)2(aq) c) Ni(NO3)2+2NaOH(aq)→Ni(OH)2↓+2NaNO3(aq) d) 2CuO(s)→ 2Cu(s) + O2 (g) e) 3MnO2 + 4Al → 3Mn + Al2O3​

Answer :

Other Questions

Classify the following reactions as decomposition, combination, displacement, or double displacement.
a) Cl2(g) +2NaBr(aq) → Br2 + 2NaCl (aq)
b) CaO(s) + H2O(l) → Ca(OH)2(aq)
c) Ni(NO3)2+2NaOH(aq)→Ni(OH)2↓+2NaNO3(aq)
d) 2CuO(s)→ 2Cu(s) + O2 (g)
e) 3MnO2 + 4Al → 3Mn + Al2O3