Classification of Reactions

What type of reaction is this? 2 C₆H₁₄ + 19 O₂ → 12 CO₂ + 14 H₂O

• Single Replacement

• Double Replacement

• Combustion

• Decomposition

What type of reaction occurs between an element and a compound?

Zn + 2HCl --> ZnCl₂ + H₂

• Synthesis

• Decomposition

• Single Replacement

• Double Replacement

• Combination

• Decomposition

• Single Replacement

• Double Replacement

• Combustion

• Combination

• Decomposition

• Single Replacement

• Double Replacement

• Combustion

What type of reaction involves the breaking down of a substance into simpler substances?

• Single Displacement Reaction

• Double Displacement Reaction

• Synthesis Reaction

• Decomposition Reaction

Tags

NGSS.MS-PS1-2

NGSS.MS-PS1-5

A new compound is formed by the combination of simpler reactants, such as nitrogen dioxide and oxygen combine (a component of smog) forming in the atmosphere. This is a ​ (a)  

• synthesis reaction

• decomposition reaction

• combustion reaction

Answer explanation

The question describes a process where simpler reactants, nitrogen dioxide and oxygen, combine to form a new compound. This is a characteristic of a synthesis reaction, where two or more simple substances combine to form a more complex substance. Therefore, the correct answer is 'synthesis reaction'.

Match the following Reaction types

• Decomposition

• 2H₂O₂ + light --> 2H₂0 + O₂

• Synthesis

• Zn(s) + 2HCl(aq) --> ZnCl₂(aq) + H₂

• Acid-Base

• 6CO₂ + 6H₂0 + light energy --> C₆H₁₂O₆ + 6O₂

• Combustion

• CH₃CO₂H +H₂O --> CH₃CO₂^- + H₃O⁺

• Single replacement

• C₆H₁₂O₆(s) + O₂ (g) --> 6CO₂ + 6H₂O(l) + heat

Tags

NGSS.MS-PS1-2

NGSS.MS-PS1-5

H₂ + O --> H₂O

• Synthesis

• Decomposition

• Single replacement

• Double replacement

Tags

NGSS.MS-PS1-2

NGSS.MS-PS1-5

The following reaction is an example of what reaction type?

CoCO₃ → CoO + CO₂

• Synthesis

• Decomposition

• Single Replacement

• Double Replacement

An element plus additional element reacts to form one product is an example of which type of chemical reaction? 

• combustion

• decomposition 

• synthesis 

• single replacement