sem. 2 final exam review

If an element is diatomic it should have a subscript of___

• 1, always

• 2, only when it is an element

• it shouldn't have a subscript, it should have a coefficent

• 2, when bonded in a compound

What is the charge of Iron in this compound. (Hint: think criss cross method):

Fe₃(PO₄)₂

• 3+

• 2+

• 1+

• 6+

Fill in the blank. (Copper has a charge of 2+)

Cu+ AgNO₃ → Ag + _____

• Cu(NO₃)₂

• CuNO₃

• CuAg

• Cu

Predict the products of this synthesis reaction: H₂ + Cl₂ →

• HCl

• H₂Cl₂

• H₂Cl

• HCl₂

What type of reaction is this?

2 C₆H₁₄ + 19 O₂ → 12 CO₂ + 14 H₂O

• Single Replacement

• Double Replacement

• Combustion

• Decomposition

Predict the products for the this Single Replacement reaction:

K + HCl →

• KCl + H₂

• KHCl

• KH + Cl₂

• HCl + K₂

Predict the products for the this Double Replacement reaction:

AgNO₃ + KCl →

• AgCl + KNO₃

• AgK + ClNO₃

• KAg + NO₃Cl

• AgCl + 3 KNO

Complete the balanced equation for this Double Replacement reaction.

3 NaOH + Fe(NO₃)₃ →

• NaFe + OH(NO₃)₃

• NaNO₃ + Fe(OH)₃

• 3 NaNO₃ + Fe(OH)₃

• 3 NaFe + 3 (OH)NO₃

Predict the product of this synthesis reaction:

Al + S₈ →

• AlS

• AlS₈

• Al₂S

• Al₂S₃

Predict the products for the decomposition of aluminum oxide, Al₂O₃ →

• Al + O₂

• O + Al₂

• Al₂ + O₃

• Al + O