Chemical Reactions

Which of the following is a characteristic of all chemical changes?

• A different state of matter is produced.

• Some mass is converted to energy.

• Some form of light is given off.

• A new material is formed.

Tags

NGSS.MS-PS1-2

Which side of a chemical equation is the product side?

• Left (before the yields sign)

• Right (after the yields sign)

Which side of a chemical equation is the reactant side?

• Left (before the yields sign)

• Right (after the yields sign)

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

• rusting of a bicycle

• painting a house

• washing a dog

• tearing up a newspaper

Tags

NGSS.MS-PS1-2

NGSS.MS-PS1-5

An element plus additional element reacts to form one product is an example of which type of chemical reaction? 

• combustion

• decomposition 

• synthesis 

• single replacement

Provides evidence that a chemical reaction has occurred. 

• dissolving 

• melting

• formation of a gas

• bending

Tags

NGSS.MS-PS1-2

A solid that is deposited from a solution

• Solid

• Liquid

• Product

• Precipitate

In making a pizza, which process involves a chemical change?

• mixing spices for the sauce

• slicing pepperoni for the topping

• spreading cheese on the pizza

• baking the dough to form the crust

Tags

NGSS.MS-PS1-2

NGSS.MS-PS1-4

What reaction has the following general formula:

AB --> A + B

• Synthesis

• Decomposition

• Single Replacement

• Double Replacement

• Combustion

The reddish-brown substance that appears when oxidation takes place is called...

• oxygen

• rust

• iron

Tags

NGSS.MS-PS1-5