Give a complete solution to each question. Show your work! Be careful of units and sig figs.
Part 1-Chapter 3
1. Balance the following chemical reactions:
C$_3$H$_8$ + O$_2$ $\rightarrow$ CO$_2$ + H$_2$O
FeCl$_3$ + NaOH $\rightarrow$ Fe(OH)$_3$ + NaCl
2. Write a balanced chemical equation for this reaction. (Include physical states.)
A solution of hydrochloric acid reacts with a solution of the base calcium hydroxide.
3. How would you classify the following reaction? In other words, which of the common TYPES of
chemical reactions does it fit into? Justify your answer by explaining WHY it fits here.
2K + MgBr$_2$ $\rightarrow$ 2KBr + Mg
4. A precipitation reaction occurs between solutions of copper (II) chloride and silver nitrate.
Provide each of the following equations describing this reaction. Include physical states. You
will want to refer to your solubility rules.
Molecular (overall) Equation:
Complete lonic Equation:
Net lonic Equation:
What are the spectator ions for this reaction?
This is a precipitation reaction, but what other TYPE of reaction is it?
5. The following is a REDOX reaction:
2AlF$_3$ + 3Ba $\rightarrow$ 2Al + 3BaF$_2$
What is being OXIDIZED?
What is being REDUCED?
