Acids and Bases
Batteries
Gas Laws
States of Matter
Surprise Me
100
What ion is released when acids dissociate in solution?
Hydrogen (H+)
100
Electrons in a battery flow from _____ to _____.
Anode (-) to Cathode (+)
100
Which of the three gas laws has an inverse relationship between their variables?
Boyle's Law
100
List 3 properties of solids
Constant shape and volume, low KE, high IMF
100
Who is credited with creating the first battery?
Alessandro Volta
200
What ion is released when bases dissociate in solution?
Hydroxide (OH-)
200
Batteries convert _____ energy to _____ energy.
Chemical to electrical
200
What is the equation for Charles's Law?
V1/T1 = V2/T2
200
List 3 properties of liquids
NOT constant shape, constant volume, medium KE, medium IMF
200
The change in which a solid changes directly into a gas is called _________.
Sublimation
300
What taste do acids have? What taste do bases have?
Acids = Sour
Bases = Bitter
300
A battery has Zn and Mg for its electrodes. Which metal is the anode and which is the cathode? Explain!!
Mg = anode (more reactive)
Zn = cathode (less reactive)
300
Solve for the missing variable and identify the gas law:
P1= 7 atm
T1= 20°C
P2= 15 atm
T2= ?
Gay-Lussac's Law; 627.86 K
300
List 3 properties of gasses
NOT constant shape and volume, high KE, low IMF
300
What is the relationship between Pressure and Temperature?
Direct Relationship; G-Lussac's Law
400
Which type of substance leaves behind a slippery feeling when it comes in contact with skin?
Bases
400
Which metal pairing would provide a higher voltage? Explain!!
(Ca and Al) or (K and Fe)
(K and Fe) because they are further apart on the activity series
400
Solve for the missing variable and identify the gas law:
P1= 34.5 kPa
V1= 9.0 L
P2= 20.0 kPa
V2= ?
Boyle's Law; 15.53 L
400
What can be said about temperature during a phase change?
Temperature remains constant during a phase change
400
What are the 3 properties that BOTH acids and bases have in common?
They can dissolve in H2O, They can conduct electricity, and they are corrosive
500
Describe three ways you could test an unknown substance in order to identify it as either an acid or a base
Check the pH, test with litmus paper, or test to see if the substance reacts with metal
500
Write the 2 half reactions and label as "oxi" or "red"
Li0 + Zn2+ --> Li+ + Zn0
Oxi: Li0 --> Li+ + 1e-
Red: Zn2+ + 2e- --> Zn0
500
Solve for the missing variable and identify the gas law:
V1= 150 mL
T1= 30°C
V2= 225 mL
T2= ?
Charles's Law; 454.50 K
500
Is this substance water? EXPLAIN!
Yes, it is water because it melts at 0 C and it boils at 100 C
500
Draw a diagram of a battery with Copper and Zinc as the two metals. Label the following: Anode, Cathode, Positive, Negative, flow of e-
