Chemical Reactions

What is the left part of a chemical equation called?
2H_{2 +} O₂ --> 2H₂O

• Reactants
• Products 
• Yields 
• Chemical Equation 

What is the right part of a chemical equation called...
2H_{2 +} O₂ --> 2H₂O

• Reactants
• Products 
• Yields 
• Chemical Equation 

Tags

NGSS.MS-PS1-5

How many different elements are in C₆H₁₂O₆?

• 1
• 2
• 3
• 4

Tags

NGSS.MS-PS1-1

Which substances are destroyed by a chemical change?

• Reactants

• Products

• Arrow

• None

Tags

NGSS.MS-PS1-5

Which substances are created by a chemical change?

• Reactants

• Products

• Arrow

• None

Tags

NGSS.MS-PS1-5

NGSS.MS-PS1-2

A chemical change is usually __________

• reversible

• irreversible

Tags

NGSS.MS-PS1-5

What is conserved (stays the same) in a chemical reaction?

• number of each atom

• color

• volume

• state of matter

Tags

NGSS.MS-PS1-5

What is NOT conserved in a chemical reaction?

• number of each atom

• color

• type of atoms

• Mass

Tags

NGSS.MS-PS1-5

NGSS.MS-PS1-2

The number of atoms before and after a chemical reaction are _______.

• not equal

• equal

• different

• not the same

Tags

NGSS.MS-PS1-5

The law of conservation of mass states that....

• Matter can be created

• Matter can be destroyed
• Matter cannot be created or destroyed

• Matter can evaporate

Tags

NGSS.MS-PS1-5