1.
When bonds break and rearrange to form new chemicals it is called a......
A. 
B. 
C. 
D. 
2.
What is the difference between a physical change and a chemical reaction?
A. 
In a chemical recation new atoms are formed
B. 
In a chemical change bonds are broken and atoms are rearranged
C. 
In a physical change atoms are lost
D. 
In a physical change bonds are broken but in a chemical reaction they are not broken
3.
Type in the coefecients separated by a comma and include the coeffecient "1". for example 1,2,5,2,1 would be the answer for
Al + 2N2 + 5O2 => 2N2O5 + AlBalance this chemical reaction
___H2 + ___O2 => ___H2O
4.
Type in the coefecients separated by a comma and include the coeffecient "1". for example 1,2,5,2,1 would be the answer for
Al + 2N2 + 5O2 => 2N2O5 + AlBalance this chemical reaction
___C3H8 + ___O2 => ___CO2 + ___H2O
5.
Type in the coefecients separated by a comma and include the coeffecient "1". for example 1,2,5,2,1 would be the answer for
Al + 2N2 + 5O2 => 2N2O5 + AlBalance this chemical reaction
___Al(OH)3 + ___H2SO4 => ___Al2(SO4)3 + ___H2O
6.
Why do chemist need to work with balanced equations?
A. 
Because of the law of conservation of energy
B. 
Because they just want to
C. 
Because of the law of conservation of mass
D. 
Because they need to get fast reaction rates
7.
The heaters in Army MRE's use a heater that give of heat when water is added. This makes the food hot and scrumptious!! What type of reaction is involved?
8.
At the 20 second mark of this experiment a magical reaction happens....what type is it?
9.
What type of reaction is this?
C10H22 + O2 => CO2 + H2O
A. 
B. 
C. 
D. 
E. 
10.
What type of reaction is this?
KOH + HBr => KBr + H2O
A. 
B. 
C. 
D. 
E. 
11.
What type of reaction is this?
N2 + H2 => NH3
A. 
B. 
C. 
D. 
E. 
12.
What type of reaction is this?
Al(OH)3 + HBr => AlBr3 + H2O
A. 
B. 
C. 
D. 
E. 
13.
What type of reaction is this?
Li + H2O => LiOH + H2
A. 
B. 
C. 
D. 
E. 
14.
What type of reaction is this?
A. 
B. 
C. 
D. 
E. 
15.
After 400 seconds of this experiment there is less small chips remaining than there is large chips. This demonstrates _____________ effect on reaction rate
A. 
B. 
C. 
D. 
16.
At a higher concentration the recation rate is faster and form a greater amount of ___________ in a shorter period of time
A. 
B. 
Reagents (this means reactants)
17.
In order to increase the reaction rate you can increase all of the following EXCEPT.....
A. 
B. 
C. 
D. 
18.
Using what you know about how temperature affects reaction rateswhat is the temperature of the middle beaker?
A. 
Colder than the other twobeakers
B. 
Hotter than the other two beakers
19.
Using knowledge from the lab experiment and what we learned about reaction rates how could you get alka seltzer to dissolve the fastes so you could get the medicine in your body the fastest
A. 
Use a whole tablet in cold water
B. 
Use a crushed tablet in room temperature water
C. 
Use a crushed tablet in warm water
D. 
Use a whole tablet in warm water
20.
If you put a whole tablet of alka seltzer in the same temperature water at the beach in florida and also on top of a mountain in colorado which one would dissolve first?