Unit 8 - Chemical Reactions

What is a Synthesis reaction?

• a compound that breaks down into two or simpler substances

• the combination of two or more substances to form a compound

• an element that replaces another in a compound

• ions in two compounds "change partners"

Tags

NGSS.MS-PS1-1

What is a Decomposition reaction?

• a compound breaks down into two or more simpler substances

• one element replaces another in a compound

• Uses oxygen as a reactant. Produces heat.

  Usually the products include water and carbon dioxide

• ions in two compounds “change partners”

What is a Single replacement reaction?

• the combination of two or more substances to form a compound

• a compound breaks down into two or more simpler substances

• one element replaces another in a compound

• ions in two compounds “change partners”

What is a Double Replacement reaction?

• ions in two compounds “change partners”

• Uses oxygen (O2) as a reactant. Produces heat.

  Usually the products include water (H2O) and carbon dioxide (CO2)

• one element replaces another in a compound

• x2 Replacement reactions equal x1 actions

What is a Combustion reaction?

• An Explosion

• Uses oxygen (O2) as a reactant. Produces heat.

  Usually the products include water (H2O) and carbon dioxide (CO2).

• ions in two compounds “change partners”

• one element replaces another in a compound

Tags

NGSS.MS-PS1-5

Which is an example of a Synthesis reaction? ( Dashes = Arrows)

• AB -- A + B

• AB + CD -- AD + BC

• A + B -- AB

• A + BC -- AC + B

Which is a example of Decomposition?

• A + BC -- AC + B

• AB -- A + B

• AB + CD -- AD + BC

• A + B -- AB

Which is an example of Single Displacement?

• A + BC -- AC + B

• AB -- A + B

• AB + CD -- AD + BC

• A + B -- AB

Which is a example of Double Displacement?

• A + B -- AB

• A + BC -- AC + B

• AB -- A + B

• AB + CD -- AD + BC

Which is a example of Combustion?

• CxHy + O2 -- CO2 + H2O

• AB -- A + B

• There is no example that supports this

• AB + CD -- AC + BD

Tags

NGSS.MS-PS1-5