A decomposition reaction can be represented as _____________________.

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

A chemical change in which a single compound breaks down into two or more simpler products is called a ______________________.

• single-replacement reaction
• synthesis reaction
• double-replacement reaction
• decomposition reaction

This chemical equation for mercury oxide is an example of what type of reaction?
2HgO  → 2Hg + O₂

• decomposition reaction
• synthesis reaction
• combustion reaction
• Marvin the Martian reaction

A chemical change in which two or more substances react to form a new substance is a ____________________________.

• decomposition reaction
• synthesis reaction
• double displacement reaction
• combustion reaction

Tags

NGSS.MS-PS1-2

A synthesis reaction can be represented as ________________________.

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

Tags

NGSS.MS-PS1-1

NGSS.MS-PS1-5

This chemical equation for magnesium oxide is an example of what type of reaction?
2Mg + O₂  → 2MgO

• decomposition reaction
• synthesis reaction
• single displacement reaction
• combustion reaction

Which of the following is an example of synthesis?

• Na + Br₂ --> NaBr
• KClO₃ --> KCl + O₂
• HgO + Cl₂-->HgCl + O₂
• Cl₂ + NaBr --> NaCl + Br₂

What is decomposition?

• putting substances together
• breaking substances apart
• element replacing another element in a compoud
• burning of a subtance

Tags

NGSS.MS-PS1-2

What type of chemical reaction is this?
Al(OH)₃ → Al₂O₃  + H₂O

• Decomposition
• Combustion
• Synthesis
• Single Replacement 

Tags

NGSS.MS-PS1-2

The number of atoms you begin with in a chemical reaction ...

• must be the same as the number of  atoms you end with
• must be an even number
• can be different to the number you finish with
• changes depending on how much energy is formed

Tags

NGSS.MS-PS1-5