DO NOW #22: DECOMPOSITION

Magnesium Oxide --> magnesium + oxygen

Is this a decomposition reaction?

• Yes
• No

Tags

NGSS.MS-PS1-2

magnesium + oxygen --> magnesium oxide

Is this a decomposition reaction?

• Yes
• No

water --> hydrogen + oxygen

Is this a decomposition reaction?

• Yes
• No

Tags

NGSS.MS-PS1-2

A decomposition reaction can be represented as _____________________.

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

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

Choose the balanced chemical equation for the formation of iron oxide.

• 2Fe + O₂ → 2FeO₂
• Fe + O₂ → FeO₂
• 4Fe + 3O₂ → 2Fe₂O₃
• 4Fe + O₂ → 2FeO₂

Tags

NGSS.HS-PS1-7

Al₂S₃ --> Al + S₈

• Decomposition
• Single Replacement
• Synthesis
• Double Replacement

Is this equation balanced
HgO --> 2Hg + O₂

• It is balanced 
• It is not balanced

Tags

NGSS.MS-PS1-5

NO₂ →N₂ + O₂

• Synthesis (combination)
• Decomposition
• Single replacement
• Combustion

Tags

NGSS.MS-PS1-2

NGSS.MS-PS1-5

2NaCl →2Na +Cl₂

• Synthesis Reaction
• Decomposition Reaction
• Single Displacement Reaction
• Double Displacement Reaction

Tags

NGSS.MS-PS1-2