Synthesis and Decomposition Reactions

In a Synthesis Reaction, two different ​ (a)   combine to form a single ​ (b)   substance.

• elements
• more complex
• compounds
• less complex

Synthesis Reactions are usually ​ (a)   .

• exothermic
• endothermic

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NGSS.MS-PS1-4

NGSS.MS-PS3-4

NGSS.MS-PS3-5

Decomposition Reactions are usually ​​ (a)   .

• endothermic
• exothermic

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NGSS.MS-PS3-4

In a Decomposition Reaction, one ​ (a)   splits into two or more ​ (b)   .

• compound
• elements or simpler compounds
• atoms
• atom
• element
• simpler compounds
• elements

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NGSS.MS-PS1-5

This image shows a ​ (a)   reaction.

• synthesis
• decomposition

Tags

NGSS.MS-PS1-2

This image shows a ​ (a)   reaction.

• decomposition
• synthesis

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NGSS.MS-PS1-2

NGSS.MS-PS1-5

What will a synthesis reaction between magnesium (Mg) and oxygen (O₂) produce?

• Mg₂

• O₄

• MgO₂

• MgCO₂

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NGSS.MS-PS1-1

NGSS.MS-PS1-2

NGSS.MS-PS1-5