Classifying Chemical Equations Quiz

AB + CD →AD + CB

• Double Replacement
• Single Replacement
• Synthesis
• Decomposition

Identify this type of reaction, Cl₂ + 2KI -->  I₂ + 2KCl

• Synthesis

• Single replacement

• Double replacement

• Decomposition

2 C₅H₅ + Fe --> Fe(C₅H₅)₂ 

• single replacement

• double replacement

• decomposition

• synthesis

Which of the following is the general formula for a decomposition reaction?

• A + B  → AB
• AB → A + B
• AB + C → AC + B
• AB + CD → AC + BD

NO₂ →N₂ + O₂

• Synthesis

• Decomposition

• Single replacement

• Combustion

Which of the following is a sign that a chemical reaction has occurred?

• change in shape

• smell

• formation of a gas

• dissolving

Tags

NGSS.MS-PS1-2

Which of the following describes a precipitate?

• a liquid forms when a block of metal is heated
• a solid forms when one liquid is poured into another
• a gas forms when a solid is placed in a liquid
• bubbles form when an acid is poured on a rock

Tags

NGSS.MS-PS1-2

__Al + __Fe₃N₂ -->__AlN + __Fe

• already balanced
• 4,2,4,6
• 2,1,2,3
• 1,2,1,3

Tags

NGSS.HS-PS1-2

NGSS.HS-PS1-7

What are the seven diatomic elements?

• H_2, Cl₂, Br₂, O₂, N₂, I₂, F₂

• H₂, Cl₂, I₂, F₂, Hg₂, Br₂, Fe₂

• H_2, Cu₂, Ni₂, B₂, O₂, I₂, Fe₂

• H_2, Cl₂, Be₂, O₂, N₂, I₂, F₂

Balance this equation.

_C₄H₁₀ + _O₂ --> _CO₂ + _H₂O

• 2,7,4,5

• 1,7,4,5

• 2,13,8,10

• 1,2,1,2

Tags

NGSS.HS-PS1-7