3. Complete the following word equations and then write balanced symbol equations for each: [9]
a) sodium + water 
b) potassium + fluorine 
c) fluorine + hydrogen 
4. Write down the names of the products for these reactions: [6]
a) fluorine + potassium bromide 
b) iron(III) oxide + sulfuric acid 
c) tin(II) carbonate + nitric acid 
5. Balance the following equations: [3]
a) Al + F2  AlF3
b) Fe2O3 + CO  Fe + CO2

Many free radicals combine to form molecules that do not contain any unpaired electrons. the driving force for the radical–radical combination reaction is the formation of a new electron‑pair bond. consider the chemical equation. n(g)+no(g)⟶nno(g) n(g)+no(g)⟶nno(g) write lewis formulas for the reactant and product species in the chemical equation. include nonbonding electrons. n(g)n(g) select draw rings more erase select draw rings more erase select draw rings more erase n no(g)