Synthesis, Decomposition, & Single Replacement

2 C₅H₅ + Fe --> Fe(C₅H₅)₂ 

• single displacement
• double displacement
• decomposition
• synthesis

Solid diphosphorous pentoxide reacts with water to form aqueous phosphoric acid (H₃PO₄). What is the correct balanced equation?

• P₂O_5(s) + 3H₂O_(l) --> 2H₃PO_4(aq)

• 2P₂O_5(s) + 6H₂O_(l) --> 4H₃PO_4(aq)

• PO_(s) + 3H₂O_(l) --> 2H₃PO_4(aq)

• P₂O_5(s) + H₂O --> H₃PO_4(aq)

Tags

NGSS.HS-PS1-1

NGSS.HS-PS1-2

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

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

Balance this equation...
HgO --> Hg + O₂

• It is balanced 
• 2HgO --> Hg + O₂
• 2HgO --> 2Hg + O₂
• I don't know...Oh well!

Tags

NGSS.HS-PS1-7

What kind of reaction is this:
2H₂O₂ →2 H₂O + O₂

• Synthesis
• Decomposition
• Single Replacement 
• Combustion

Which type of reaction takes place in the presence of oxygen and produces carbon dioxide and water?

• double replacement 
• decomposition 
• combustion 
• single replacement

Classify
CH₄ + O₂ → CO₂ + H₂O 

• single replacement
• double replacement
• synthesis
• combustion

What is the product when I have the reaction

Al + Br_{2 ==>}

• AlBr₂

• AlBr₃

• AlBr

• A + l + B + r

Tags

NGSS.HS-PS1-1

NGSS.HS-PS1-2

What are the products of this reaction?{copper (II)}

Cu+ AgNO₃-->

• Cu₂NO₃ + Ag

• Cu(NO₃)₂+Ag

• CuAg+NO₃

• no reaction will occur

Tags

NGSS.HS-PS1-1

NGSS.HS-PS1-2

Which of these reactions is possible? 

• Zn (s) + CuO (aq) --> ZnO (aq) + Cu (s)
• Cu (s) + FeSO₄ (aq) --> CuSO₄ (aq) + Fe (s)
• Pb (s) + ZnCl₂ (aq) --> PbCl₂ (a) + Zn (s)
• Au (s) + 2HCl (aq) --> AuCl₂ (aq) + H₂ (g)

Tags

NGSS.HS-PS1-1

NGSS.HS-PS1-2