Which medication is commonly administered to newborns after birth?

For the following reaction: Zn(s) + FeCl2(aq) –> Fe(s) + ZnCl2(aq) a. Write a balanced net ionic equation. (3 marks) b. Identify the reactant that is being oxidized and the reactant that is being reduced. (2 marks) c. Write balanced half-reactions for the oxidation and the reduction. (3 marks)

Balance the following equations and state whether the reaction is a decomposition, single displacement, synthesis or double displacement reaction.  a)   HgO  –>  Hg   + O2  b)   Sr(OH)2  + Na2SO4 –> SrSO4  +  NaOH   c)   Mg  + HCl  –>  H2   +  MgCl 

If the % yield for a reaction is 60%, and the actual yield is 15g, what is the theoretical yield?

Given the equation: 2KOH + H2S –> K2S + 2H2O, if you had 4 mol KOH and 5 mol H2S, what would be the limiting reagent?

The number 6.02 x 10 23 describes which of the following:

The total number of atoms in one molecule of the compound sulphuric acid H2SO4 is:

An atom will lose or gain electrons to become stable. What is the name of this rule? 

What is devolution?

Write the balanced equation for the complete combustion of ethyne (C2H2).