Science summative test

• A reaction occurs when 2 or more reactants combine to form a single product. The general formula for this reaction is: A + B > AB


  Combination Reaction
• In this reaction, a single reactant breaks down into simpler ones. (2 or more products). This is the reverse of the combination reaction. The general formula for this reaction is: AB > A + B

  Decomposition Reaction
• This is when one element replaces another element from a compound. The more active element takes the place of the less active element in a compound. The general formula for this reaction is: A + BC > AC + B

  Single Displacement Reaction
• This is when the positive ions (cations) and negative ions (anions) of different compounds switch places forming two entirely different compounds. The general formula for this reaction is: AB + CD > AD + CB


  Double Displacement Reaction
• This is when oxygen combines with a hydrocarbon (compound containing hydrogen and carbon) to form water and carbon dioxide. Example of this is the burning of butane gas: C4H10O2 + 02 > CO2 + H2O


  Combustion Reaction
• This is a special kind of double displacement reaction that takes place when an acid and base react with each other. The H+ of the acid reacts with the OH- of the base, forming water. The other product is salt. Example of this is: HCI + NaOH > NaCI = H2O

  Acid-Base Reaction
• NaOH + KNO3 > NaNO3 + KOH

  Double Displacement Reaction
• CH4 + O2 + CO2 + 2H20

  Single Displacement Reaction
• Fe + NaBr -> FeBr3 + Na

  Single Displacement Reaction
• CaSO4 + Mg(OH)2 > Ca(OH)2 + MgSO4

  Double Displacement Reaction
•  NH4OH + HBr > H2O + NH4Br

  Double Displacement Reaction
•  P4 + O2 > Р205

  Combination Reaction
• NaNO3 > NaNO2 + O2

  Decomposition Reaction
• C18H18 + 02 > CO2 + H2O


  Combustion Reaction
• H2SO4 + NaOH > NaSO4 + H2O

  Acid-Base Reaction
• NiSO4 + Li3PO4 > Ni3(PO4)2 + Li2SO4

  Double Displacement Reaction