Question

type of reaction
match the correct type of reaction to each equation:
2 c₄h₁₀ + 13 o₂ → 8 co₂ + 10h₂o
pb(no₃)₂ + 2 ki → pbi₂ + 2 kno₃
2 nahco₃ → na₂co₃ + co₂ + h₂o
2 sr + o₂ → 2 sro
ca + 2 hcl → cacl₂ + h₂
synthesis decomposition single replacement double replacement combustion

Explanation:

Step1: Analyze \( 2C_4H_{10}+13O_2

ightarrow 8CO_2 + 10H_2O \)
This is a reaction of a hydrocarbon with oxygen to produce carbon dioxide and water, which is a combustion reaction.

Step2: Analyze \( Pb(NO_3)_2 + 2KI

ightarrow PbI_2+2KNO_3 \)
In this reaction, the cations (\(Pb^{2+}\) and \(K^+\)) and anions (\(NO_3^-\) and \(I^-\)) of the two compounds exchange places, so it is a double - replacement reaction.

Step3: Analyze \( 2NaHCO_3

ightarrow Na_2CO_3 + CO_2 + H_2O \)
A single compound breaks down into two or more simpler substances, so this is a decomposition reaction.

Step4: Analyze \( 2Sr + O_2

ightarrow 2SrO \)
Two or more substances combine to form a single substance, so this is a synthesis reaction.

Step5: Analyze \( Ca + 2HCl

ightarrow CaCl_2 + H_2 \)
One element (\(Ca\)) replaces another element (\(H\)) in a compound (\(HCl\)), so this is a single - replacement reaction.

Answer:

• \( 2C_4H_{10}+13O_2

ightarrow 8CO_2 + 10H_2O \): Combustion

• \( Pb(NO_3)_2 + 2KI

ightarrow PbI_2+2KNO_3 \): Double Replacement

• \( 2NaHCO_3

ightarrow Na_2CO_3 + CO_2 + H_2O \): Decomposition

• \( 2Sr + O_2

ightarrow 2SrO \): Synthesis

• \( Ca + 2HCl

ightarrow CaCl_2 + H_2 \): Single Replacement