Balancing Chemical Equations Advanced

What goes in the missing blanks?
SnO₂ + __ H₂ → Sn + __ H₂O

• 5
• 1
• 3
• 2

Tags

NGSS.HS-PS1-2

NGSS.HS-PS1-7

_Na₃PO₄₊_KOH   --->
_NaOH + _ K₃PO₄

• 1 Na₃PO₄+3 KOH
  --->
  3 NaOH +  1 K₃PO₄
• 2 Na₃PO₄+2 KOH
  --->
  3 NaOH +  1 K₃PO₄
• 1 Na₃PO₄+2 KOH
  --->
  2 NaOH +  1 K₃PO₄
• 3 Na₃PO₄+3 KOH
  --->
  3 NaOH +  1 K₃PO₄

Tags

NGSS.HS-PS1-2

NGSS.HS-PS1-7

Balance this equation.
_CF₄ + _Br₂ -- _CBr₄ + _F₂

• 2,1,2,1
• 1,2,2,1
• 1,2,1,2
• 2,2,2,2

Tags

NGSS.HS-PS1-7

What coefficient should be used to make the following equation balanced?
N₂+O₂--> _NO 

• 1
• 2
• 3
• 4

Tags

NGSS.HS-PS1-7

Which coefficients balance this equation:
NH₃  +  O₂ ---->   NO  + H₂O

• 2,3,5,6
• 5,5,4,6
• 4,6,4,5
• 4,5,4,6

Tags

NGSS.HS-PS1-7

Balance this equation.
_CH₄ + _O₂ --> _CO₂ + _H₂O

• 1,2,1,1
• 2,1,2,1
• 1,2,1,2
• 0,2,0,2

Tags

NGSS.HS-PS1-7

Balance this equation-
_SeCl₆+_O₂ ->_SeO₂+_Cl₂

• 1,2,1,2
• 1,1,1,3
• 1,2,1,1
• 2,1,1,1

Tags

NGSS.HS-PS1-7

Balance this equation.
_SnO₂ +_H₂-->_Sn +_H₂O

• 1,1,2,1
• 1,2,1,1
• 1,2,1,2
• 1,2,2,1

Tags

NGSS.HS-PS1-2

NGSS.HS-PS1-7

Balance this equation
_Al +_HCl --> _H₂ +_AlCl₃

• 2, 6, 3, 2
• it is already balanced
• 4, 12, 3, 4
• 2, 1, 4, 5

Tags

NGSS.HS-PS1-7

Which of the following shows the correct way to balance the chemical equation?
Fe + O₂ -> Fe₂O₃

• 4Fe + 3O₂ -> 2Fe₂O₃
• 2 Fe + 3O₂ -> Fe₂O₆
• 4 Fe + O₆ -> 2Fe₂O₃
• None of the options are correctly balanced.