topic 8: reactivity of metals

what is a limiting reactant?

reactat that runs oit first (limits amount of product thats formed)

what is atom economy?

how much of the reactants are wasted during a reaction, and how much becomes useful productsw

what is the equation for calculating atom economy?

atom economy = (Mr of desired product/Mr of reactants) x 100

what is the equation to calculate percentage yield?

percentage yield = (mass of product actually made/max theoretical mass of product) x 100

what is the reactivity series?

K Na Li Ca Mg Zn Fe H Cu

what metals are extracted by electrolysis?

metals more reactive than carbon

what metals are extracted by reduction with carbon?

metals less reactive than carbon

why is having a low atom economy bad?

• money wasted of materials

• lots of waste materials that have to be disposed of

why is percentage yield never 100%?

• reversible reactions

• reactants may react in ways not expected

• some product may be lost when separated from reaction mixture