Download Chemical reaction chapter test study guide

FUNDAMENTALS
Name: ___________________ Period: ____
UNIT 5: Test Review Sheet
CHEMICAL REACTIONS (BALANCING AND TYPES OF REACTIONS)
1. Calculate the number of atoms of each element shown in each of the following:
a. CaSO4 _______________________
b. 2 NaCl
______________________
c. Fe(NO3)2 ______________________
d. Al2(CO3)3 ______________________
2. Balance each of the following equations:
a. ____ Na2CO3 + ____ HCl → ____ NaCl
+ ____
H2O + ___ CO2
b. ____ HCl + ____ Cr → ____ CrCl2 + ____ H2
c. ____ F2 + ____ KCl → ____ KF + ____ Cl2
3. What happens in an exothermic reaction? __________________________________________________________
Would an exothermic reaction get HOT or COLD? (Circle one)
4. What happens in an endothermic reaction? _________________________________________________________
Would an endothermic reaction get HOT or COLD? (Circle one)
5. Name four ways you can affect the rate of a chemical reactions. Be able to explain each one.
a. _______________________
c. _________________________
b. _______________________
d. _________________________
6. Name four clues or indicators that a chemical reaction occurred.
a. __________________________
c. _________________________
b. __________________________
d. _________________________
7. List the five types of chemical reaction:
a. __________________________
b. __________________________
c. _________________________
d. _________________________
e. _________________
8. Identify the types of reactions shown in each of the following equations:
a. 2 H2 + O2 
2 H2O _________________
b. 2 Al + NiBr2  AlBr3 + Ni _______________
c. AgNO3 + KCl  AgCl + KNO3 _______________
d. 2 H2O2  H2O + O2 ______________________
9. Why can’t you change the subscripts in a chemical formula? ______________________________________
__________________________________________________________________________________________________
10. Label the reactants, products, coefficients and subscripts in the following reaction:
2 K + MgBr2 
2 KBr + Mg
11. What does the Law of Conservation of Mass state?
__________________________________________________________________________________________________
12. Balance the following reaction with POLYATOMIC IONS: ___ FeCl3 + ___ NaOH  ___ Fe(OH)3 + ___NaCl
OH
Na
Fe
Cl
MAKING THINGS STRONGER VIDEO QUESTIONS
1. List two elements found in steel. ____________________________________
2. What is “tensile strength?”
______________________________________________________________
3. What is “compressive strength?”
_______________________________________________________________
4. What are nanotubes made of? __________________________
5. True or False: Spider silk has more tensile strength than steel.
CARBON BASED MOLECULES (Macromolecules)
1. What is organic chemistry? _______________________________________________________________________
2. What properties of carbon makes it the building block of life?
__________________________________________________________________________________________________
3. What are three examples of pure carbon? _________________________________________________________
4. How many valence electrons does carbon have and what would the Lewis Dot Diagram look like?
5. Identify the monomer for each organic molecule. (ex. proteins – amino acids)
__________________________________________________________________________________________________
6. What foods are examples of carbohydrates, lipids and proteins?
_________________________________________________________________________________________________
7. What is a monomer? ____________________________________________________________________________
8. What is a polymer? _____________________________________________________________________________
ACIDS AND BASES
1. Know the chemical formulas for the five common acids (ex. Nitric, phosphoric, etc.)
___________________________________________________________________________________________________
2. What is the pH range for acids? What about bases? ________________________________________________
3. What are three characteristics of acids? What are three characteristics of bases?
________________________________________________________________________________________________
4. What is the pH for a substance that is neutral? What is an example of a neutral substance?
_________________________________________________
5. Know the definition of Bronsted-Lowry acids. ______________________________________________________
6. Identify the acid, the base, the conjugate acid and the conjugate base in the reaction:
NH3 (g) + HOH (l) ⇄ NH4+(aq) + OH-(aq)
7. Identify the acid, the base, the conjugate acid and the conjugate base in the reaction:
HCO3 -(aq) + HOH (l)
⇄
CO3 2-(aq) +
H3O+ (aq)