Balancing and types of chemical reactions

Is the equation balanced?: 2H₂O + O₂ --> 4MgO + 3Fe

• yes

• no

Tags

NGSS.MS-PS1-5

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

• Reactants
• Products 
• Yields 
• Chemical Equation 

Tags

NGSS.MS-PS1-1

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

• Reactants
• Products 
• Yields 
• Chemical Equation 

Balance this equation:
 2Li + Cl₂ -> LiCl

• 2Li + Cl₂ -> 4LiCl2
• 2Li + Cl₂ -> LiCl₂
• 2Li + Cl₂ -> 2LiCl

Tags

NGSS.MS-PS1-5

How many HCl molecules do you need to balance this equation? 
Mg +  __HCl --->  MgCl₂ + H₂

• 1
• 2
• 3
• 4

Tags

NGSS.MS-PS1-5

Is the following equation balanced or unbalanced ? 
Al + O₂ --> Al₂O₃

• Balanced
• Unbalanced

Tags

NGSS.MS-PS1-5

Which of the coefficients could be used to balance this equation?

__Ag₂O →__ Ag +___O₂

• 2,4,1

• 1,1,1

• 2,1,2

• 2,2,2

Tags

NGSS.MS-PS1-5

Is the following equation balanced?
2C₂H₂ + 5O₂ --> 4CO₂ + 2H₂O

• yes
• no

Tags

NGSS.MS-PS1-5

Is the following equation balanced?
4Fe + 3O₂ --> 2Fe₂O₃

• yes
• no

Tags

NGSS.MS-PS1-5

4Si + S₈ --> 2Si₂S₄

• Synthesis
• Decomposition
• Single displacement
• Double displacement