Classifying Reactions Quiz

Identify the following chemical reaction.

2 NaBr + 1 Ca(OH)₂ ----> 1 CaBr₂ + 2 NaOH

• Synthesis

• Decomposition

• Single replacement

• Double replacement

Identify the following chemical reaction.

Pb + FeSO₄ ----> PbSO₄ + Fe

• Synthesis

• Decomposition

• Single replacement

• Double replacement

Tags

NGSS.MS-PS1-2

What reaction has the following general formula:

AB --> A + B

• Synthesis

• Decomposition

• Single Replacement

• Double Replacement

• Combustion

What reaction has the following general formula:

A + B --> AB

• Synthesis

• Decomposition

• Single Replacement

• Double Replacement

• Combustion

Which chemical reaction always starts with a hydrocarbon that reacts with oxygen and produces carbon dioxide and water?

• Decomposition

• Synthesis

• Combustion

• Single Replacement

In a chemical reaction, everything to the RIGHT of the arrow is called ______________.

• Product(s)

• Yields

• Molecules

• Reactant(s)

At the end of chemical reactions, what is the total mass of the reactants compared to the total mass of the products?

• the product is doubled
• the product is half the mass of the reactants
• the mass is the same
• the mass changes depending on the reaction

Tags

NGSS.MS-PS1-5

• Combination

• Decomposition

• Single Replacement

• Double Replacement

• Combustion

Which of the following is an example of a chemical change?

• melting a stick of butter
• dissolving salt in water
• using magnesium to displace hydrogen gas from water

Tags

NGSS.MS-PS1-5

NGSS.MS-PS1-2

Which of the following is an example of a physical change to matter?

• rusting
• digestion
• freezing

Tags

NGSS.MS-PS1-4