good morning ladies!
DESCRIPTION
Good Morning Ladies!. Questions before the test? TEST. In both fission and fusion reactions, energy is…. RELEASED because…. E = m c 2 Energy = mass x speed of light squared Mass is converted to energy. - PowerPoint PPT PresentationTRANSCRIPT
![Page 1: Good Morning Ladies!](https://reader035.vdocument.in/reader035/viewer/2022062803/568147a3550346895db4db71/html5/thumbnails/1.jpg)
![Page 2: Good Morning Ladies!](https://reader035.vdocument.in/reader035/viewer/2022062803/568147a3550346895db4db71/html5/thumbnails/2.jpg)
Good Morning Ladies!
1. Questions before the test?2. TEST
![Page 3: Good Morning Ladies!](https://reader035.vdocument.in/reader035/viewer/2022062803/568147a3550346895db4db71/html5/thumbnails/3.jpg)
![Page 4: Good Morning Ladies!](https://reader035.vdocument.in/reader035/viewer/2022062803/568147a3550346895db4db71/html5/thumbnails/4.jpg)
In both fission and fusion reactions, energy is…
RELEASED
because…
E = mc2
Energy = mass x speed of light squared
Mass is converted to energy
![Page 5: Good Morning Ladies!](https://reader035.vdocument.in/reader035/viewer/2022062803/568147a3550346895db4db71/html5/thumbnails/5.jpg)
100 g samples of both radium-226 and radon-222 were left in a chemical laboratory in 1950. Which sample poses the least risk today?
Half-life of radium-226 is 1600yHalf-life of radon-222 is 3.82d
• radon-222 because it has a shorter half-life
• radon-222 because it decays faster
![Page 6: Good Morning Ladies!](https://reader035.vdocument.in/reader035/viewer/2022062803/568147a3550346895db4db71/html5/thumbnails/6.jpg)
Good Afternoon Ladies!
1. Questions before the test?2. TEST
…………….
3. Begin Oxidation-Reduction Reactions Unit
![Page 7: Good Morning Ladies!](https://reader035.vdocument.in/reader035/viewer/2022062803/568147a3550346895db4db71/html5/thumbnails/7.jpg)
![Page 8: Good Morning Ladies!](https://reader035.vdocument.in/reader035/viewer/2022062803/568147a3550346895db4db71/html5/thumbnails/8.jpg)
In both fission and fusion reactions, energy is…
RELEASED
because…
E = mc2
Energy = mass x speed of light squared
Mass is converted to energy
![Page 9: Good Morning Ladies!](https://reader035.vdocument.in/reader035/viewer/2022062803/568147a3550346895db4db71/html5/thumbnails/9.jpg)
100 g samples of both radium-226 and radon-222 were left in a chemical laboratory in 1950. Which sample poses the least risk today?
Half-life of radium-226 is 1600yHalf-life of radon-222 is 3.82d
• radon-222 because it has a shorter half-life
• radon-222 because it decays faster
![Page 10: Good Morning Ladies!](https://reader035.vdocument.in/reader035/viewer/2022062803/568147a3550346895db4db71/html5/thumbnails/10.jpg)
Good Morning Ladies!
• Prayer• Regents Review Resources• Begin Oxidation-Reduction Reactions Unit
– What are oxidation-reduction reactions?– Assigning oxidation numbers
HW: Redox 1 DUE MONDAY
Also: Simulating Half-Life Lab DUE next Friday
![Page 11: Good Morning Ladies!](https://reader035.vdocument.in/reader035/viewer/2022062803/568147a3550346895db4db71/html5/thumbnails/11.jpg)
Oxidation-Reduction Reactions
![Page 12: Good Morning Ladies!](https://reader035.vdocument.in/reader035/viewer/2022062803/568147a3550346895db4db71/html5/thumbnails/12.jpg)
*What kind of chemical reaction is responsible for burning, rusting, bleaching clothes, powering your cell phone as well as your body, and giving fireflies their glow?
• Oxidation-Reduction Reactions, also called REDOX reactions
![Page 13: Good Morning Ladies!](https://reader035.vdocument.in/reader035/viewer/2022062803/568147a3550346895db4db71/html5/thumbnails/13.jpg)
I. What are Redox Reactions?
• Redox reactions involve the transfer of ELECTRONS (e–) between different atoms
Na + Cl → Na + Cl
![Page 14: Good Morning Ladies!](https://reader035.vdocument.in/reader035/viewer/2022062803/568147a3550346895db4db71/html5/thumbnails/14.jpg)
Oxidation Reduction
![Page 15: Good Morning Ladies!](https://reader035.vdocument.in/reader035/viewer/2022062803/568147a3550346895db4db71/html5/thumbnails/15.jpg)
* CONSERVATION OF CHARGE: oxidation and reduction happen simultaneously (at the same time) – you can’t have one without the other
![Page 16: Good Morning Ladies!](https://reader035.vdocument.in/reader035/viewer/2022062803/568147a3550346895db4db71/html5/thumbnails/16.jpg)
Remember: LEO the lion says GER (or LEO the liger says GER)
• LOSING ELECTRONS is OXIDATION• GAINING ELECTRONS is REDUCTION
![Page 17: Good Morning Ladies!](https://reader035.vdocument.in/reader035/viewer/2022062803/568147a3550346895db4db71/html5/thumbnails/17.jpg)
Good Afternoon Ladies!
• Determining if a reaction is redox• Assigning oxidation numbers
HW: Redox 1 DUE MONDAY
Also: Simulating Half-Life Lab DUE next Friday
![Page 18: Good Morning Ladies!](https://reader035.vdocument.in/reader035/viewer/2022062803/568147a3550346895db4db71/html5/thumbnails/18.jpg)
II. Determining if a reaction is a redox reaction
• If the oxidation number/state of an atom changes from reactant to product, a redox reaction has occurred
*Note: Double replacement reactions are NOT redox reactions
![Page 19: Good Morning Ladies!](https://reader035.vdocument.in/reader035/viewer/2022062803/568147a3550346895db4db71/html5/thumbnails/19.jpg)
A. Assigning Oxidation Numbers(listed on the Periodic Table)
1. If a species is all by itself (not combined with a different element), its oxidation number is ZERO
Ex: Mg O2 S2 Cu H2
![Page 20: Good Morning Ladies!](https://reader035.vdocument.in/reader035/viewer/2022062803/568147a3550346895db4db71/html5/thumbnails/20.jpg)
2. In a polyatomic ion, the elements’ oxidation numbers add up to equal the CHARGE on the ion
* SOS: you must multiply the Subscript by the Oxidation number to get the Sum
NH4+ ClO–
A. Assigning Oxidation Numbers(listed on the Periodic Table)
![Page 21: Good Morning Ladies!](https://reader035.vdocument.in/reader035/viewer/2022062803/568147a3550346895db4db71/html5/thumbnails/21.jpg)
2. In a polyatomic ion, the elements’ oxidation numbers add up to equal the CHARGE on the ion
* SOS: you must multiply the Subscript by the Oxidation number to get the Sum
SO3 2– SO4 2–
A. Assigning Oxidation Numbers(listed on the Periodic Table)
![Page 22: Good Morning Ladies!](https://reader035.vdocument.in/reader035/viewer/2022062803/568147a3550346895db4db71/html5/thumbnails/22.jpg)
3. In a compound, the oxidation numbers of the elements add up to ZERO (compounds are neutral)
* SOS: you must multiply the Subscript by the Oxidation number to get the Sum
NaCl
A. Assigning Oxidation Numbers(listed on the Periodic Table)
![Page 23: Good Morning Ladies!](https://reader035.vdocument.in/reader035/viewer/2022062803/568147a3550346895db4db71/html5/thumbnails/23.jpg)
3. In a compound, the oxidation numbers of the elements add up to ZERO (compounds are neutral)
• SOS: you must multiply the Subscript by the Oxidation number to get the Sum
NH4Cl
A. Assigning Oxidation Numbers(listed on the Periodic Table)
![Page 24: Good Morning Ladies!](https://reader035.vdocument.in/reader035/viewer/2022062803/568147a3550346895db4db71/html5/thumbnails/24.jpg)
3. In a compound, the oxidation numbers of the elements add up to ZERO (compounds are neutral)
• SOS: you must multiply the Subscript by the Oxidation number to get the Sum
H2SO3
A. Assigning Oxidation Numbers(listed on the Periodic Table)
![Page 25: Good Morning Ladies!](https://reader035.vdocument.in/reader035/viewer/2022062803/568147a3550346895db4db71/html5/thumbnails/25.jpg)
More Examples
a.) What is the oxidation number of chlorine in iron (III) chloride?
![Page 26: Good Morning Ladies!](https://reader035.vdocument.in/reader035/viewer/2022062803/568147a3550346895db4db71/html5/thumbnails/26.jpg)
More Examples
b.) What is the oxidation state of chromium in potassium chromate?
![Page 27: Good Morning Ladies!](https://reader035.vdocument.in/reader035/viewer/2022062803/568147a3550346895db4db71/html5/thumbnails/27.jpg)
B. Checking for Changes in Oxidation Numbers
2 Na (s) + Cl2 (g) → 2NaCl (s)
• The oxidation # on Na changes from 0 to +1• Na loses electrons• Na is oxidized• Na is the reducing agent
• The oxidation # on Cl changes from 0 to –1• Cl gains electrons• Cl is reduced• Cl is the oxidizing agent
![Page 28: Good Morning Ladies!](https://reader035.vdocument.in/reader035/viewer/2022062803/568147a3550346895db4db71/html5/thumbnails/28.jpg)
B. Checking for Changes in Oxidation Numbers
2Mg (s) + O2 (g) → 2MgO (s)
• The oxidation # on Mg changes from 0 to +2• Mg loses electrons• Mg is oxidized• Mg is the reducing agent
• The oxidation # on O changes from 0 to –2• O gains electrons• O is reduced• O is the oxidizing agent
![Page 29: Good Morning Ladies!](https://reader035.vdocument.in/reader035/viewer/2022062803/568147a3550346895db4db71/html5/thumbnails/29.jpg)
Orange Packet
• #s 1, 21, 23, 25
![Page 30: Good Morning Ladies!](https://reader035.vdocument.in/reader035/viewer/2022062803/568147a3550346895db4db71/html5/thumbnails/30.jpg)
![Page 31: Good Morning Ladies!](https://reader035.vdocument.in/reader035/viewer/2022062803/568147a3550346895db4db71/html5/thumbnails/31.jpg)
Good Morning Ladies!
• Prayer• Review Videos on Wikispace!• Trade & Grade Redox 1 (collect)• Writing Oxidation & Reduction Half-Reactions
HW: Redox 2 DUE WEDNESDAYReminder: Simulating Half-Life Lab DUE FRIDAY
![Page 32: Good Morning Ladies!](https://reader035.vdocument.in/reader035/viewer/2022062803/568147a3550346895db4db71/html5/thumbnails/32.jpg)
Good Afternoon Ladies!
• Review Videos on Wikispace!• Trade & Grade Redox 1 (collect)• Writing Oxidation & Reduction Half-Reactions
HW: Redox 2 DUE WEDNESDAYReminder: Simulating Half-Life Lab DUE FRIDAY
![Page 33: Good Morning Ladies!](https://reader035.vdocument.in/reader035/viewer/2022062803/568147a3550346895db4db71/html5/thumbnails/33.jpg)
![Page 34: Good Morning Ladies!](https://reader035.vdocument.in/reader035/viewer/2022062803/568147a3550346895db4db71/html5/thumbnails/34.jpg)
a.) Zn + 2HCl → ZnCl2 + H2
![Page 35: Good Morning Ladies!](https://reader035.vdocument.in/reader035/viewer/2022062803/568147a3550346895db4db71/html5/thumbnails/35.jpg)
b.) 4Al + 3O2 → 2Al2O3
![Page 36: Good Morning Ladies!](https://reader035.vdocument.in/reader035/viewer/2022062803/568147a3550346895db4db71/html5/thumbnails/36.jpg)
c. For soldiers on the front lines or on special remote missions, a hot meal can make a big difference. Instead of building a fire or carrying a stove with them, soldiers simply break open a bag and mix some magnesium metal with water to heat their food. This reaction is an example of a redox reaction, producing magnesium hydroxide, hydrogen gas, and heat as products. In the space below, write the oxidation and reduction half-reactions.
![Page 37: Good Morning Ladies!](https://reader035.vdocument.in/reader035/viewer/2022062803/568147a3550346895db4db71/html5/thumbnails/37.jpg)
Whiteboard Practice
Write the oxidation and reduction half-reactions for the following redox reactions
Zn + HNO3 Zn(NO3)2 + NO2 + H2O
Sn + HNO3 + H2O H2SnO3 + NO
NaClO + H2S NaCl + H2SO4
![Page 38: Good Morning Ladies!](https://reader035.vdocument.in/reader035/viewer/2022062803/568147a3550346895db4db71/html5/thumbnails/38.jpg)
Orange Packet
#s 2, 3, 19, 20, 22, 24, 26-30, 32-35
![Page 39: Good Morning Ladies!](https://reader035.vdocument.in/reader035/viewer/2022062803/568147a3550346895db4db71/html5/thumbnails/39.jpg)
Good Morning Ladies! (TUES)
• Prayer• Gummy Bear Sacrifice• Breathalyzer Demo• Balancing Redox Reactions• Pass back Nuclear Chemistry Test
HW: Redox 2 DUE TOMORROWReminder: Simulating Half-Life Lab DUE FRIDAY
![Page 40: Good Morning Ladies!](https://reader035.vdocument.in/reader035/viewer/2022062803/568147a3550346895db4db71/html5/thumbnails/40.jpg)
In the presence of oxygen, iron forms iron (III) oxide, more commonly known as rust. In the space below, write the balanced equation for the chemical process of the corrosion of iron using the oxidation and reduction half-reaction method.
![Page 41: Good Morning Ladies!](https://reader035.vdocument.in/reader035/viewer/2022062803/568147a3550346895db4db71/html5/thumbnails/41.jpg)
![Page 42: Good Morning Ladies!](https://reader035.vdocument.in/reader035/viewer/2022062803/568147a3550346895db4db71/html5/thumbnails/42.jpg)
What causes fruit to turn brown?
• Oxidation of compounds in fruit after exposure to oxygen in the air causes a change of color (browning) of fruit
![Page 43: Good Morning Ladies!](https://reader035.vdocument.in/reader035/viewer/2022062803/568147a3550346895db4db71/html5/thumbnails/43.jpg)
Oxidation (losing electrons) is a process that can be very damaging to living things.
• results in the creation of free radicals, which are chemical species that have unpaired electrons (they are unhappy – they don’t have a completed valence shell)
• free radicals will rip electrons away from other compounds in living things, such as proteins or molecules of DNA, causing damage which can lead to cancer
• Antioxidants get rid of free radicals – Vitamins A, C, and E are antioxidants
![Page 44: Good Morning Ladies!](https://reader035.vdocument.in/reader035/viewer/2022062803/568147a3550346895db4db71/html5/thumbnails/44.jpg)
Good Morning Ladies! (WED)
Please place your Redox 2 HW in the bin• Prayer• Two Types of Electrochemical Cells
– Voltaic cells– Electrolytic cells
Reminder: Simulating Half-Life Lab DUE FRIDAYHeads up HW: Redox 3 DUE TUESDAY*Redox Unit TEST next WEDNESDAY
![Page 45: Good Morning Ladies!](https://reader035.vdocument.in/reader035/viewer/2022062803/568147a3550346895db4db71/html5/thumbnails/45.jpg)
Good Afternoon Ladies! (WED)
Please place your Redox 2 HW in the bin• Two Types of Electrochemical Cells
– Voltaic cells– Electrolytic cells
Reminder: Simulating Half-Life Lab DUE FRIDAYHeads up HW: Redox 3 DUE TUESDAY*Redox Unit TEST next WEDNESDAY
![Page 46: Good Morning Ladies!](https://reader035.vdocument.in/reader035/viewer/2022062803/568147a3550346895db4db71/html5/thumbnails/46.jpg)
V. Electrochemical CellsA. Use REDOX reactions to convert chemical
energy into electrical energy OR convert electrical energy into chemical energy
![Page 47: Good Morning Ladies!](https://reader035.vdocument.in/reader035/viewer/2022062803/568147a3550346895db4db71/html5/thumbnails/47.jpg)
![Page 48: Good Morning Ladies!](https://reader035.vdocument.in/reader035/viewer/2022062803/568147a3550346895db4db71/html5/thumbnails/48.jpg)
![Page 49: Good Morning Ladies!](https://reader035.vdocument.in/reader035/viewer/2022062803/568147a3550346895db4db71/html5/thumbnails/49.jpg)
1. Voltaic (Galvanic) Cells = batteries
a.) SPONTANEOUS redox reactions – NO energy put in (energy is released)
Use Table J to determine what is oxidized and what is reduced
Higher on Table J is OXIDIZEDLower on Table J is REDUCED
![Page 50: Good Morning Ladies!](https://reader035.vdocument.in/reader035/viewer/2022062803/568147a3550346895db4db71/html5/thumbnails/50.jpg)
*Parts to Know*Electrodes: the places where oxidation or
reduction happensoAnode: the site of oxidation (An Ox)oCathode: the site of reduction (Red Cat)
Wire: electrons flow through the wire from the anode (–) to the cathode (+)
Salt bridge: allows IONS to flow between the electrodes to keep the charges balanced
![Page 51: Good Morning Ladies!](https://reader035.vdocument.in/reader035/viewer/2022062803/568147a3550346895db4db71/html5/thumbnails/51.jpg)
The electrodes must be separated in order to produce an electric current (flow of electrons).
The energy present in the flowing electrons (ELECTRICITY) is captured and used to power other processes.
![Page 52: Good Morning Ladies!](https://reader035.vdocument.in/reader035/viewer/2022062803/568147a3550346895db4db71/html5/thumbnails/52.jpg)
b.) Diagram of a voltaic cell using Zn and Zn(NO3)2
with Cu and Cu(NO3)2
![Page 53: Good Morning Ladies!](https://reader035.vdocument.in/reader035/viewer/2022062803/568147a3550346895db4db71/html5/thumbnails/53.jpg)
c.) Voltaic cell problems:1. Look on Table J and find which element is higher
– this element is OXIDIZED (On Table J – electrons flow DOWNHILL,
spontaneously)2. Under each beaker write “oxidation” or “reduction”3. Label the oxidation electrode ANODE (An Ox)4. Label the reduction electrode CATHODE
(Red Cat)
![Page 54: Good Morning Ladies!](https://reader035.vdocument.in/reader035/viewer/2022062803/568147a3550346895db4db71/html5/thumbnails/54.jpg)
5. Place a (–) charge on the anode6. Place a (+) charge on the cathode
7. Draw in the direction of electron flow (from ANODE (–) to CATHODE (+))
8.Write the half reactions under the correct beakers
9.Be able to describe what is occurring at the anode and cathode
![Page 55: Good Morning Ladies!](https://reader035.vdocument.in/reader035/viewer/2022062803/568147a3550346895db4db71/html5/thumbnails/55.jpg)
10. The salt bridge allows for ions to flow between the electrodes
Positive (+) ions flow toward the CATHODE (to balance the negative electrons)
Negative (–) ions flow toward the ANODE (to replace the electrons that are leaving)
![Page 56: Good Morning Ladies!](https://reader035.vdocument.in/reader035/viewer/2022062803/568147a3550346895db4db71/html5/thumbnails/56.jpg)
![Page 57: Good Morning Ladies!](https://reader035.vdocument.in/reader035/viewer/2022062803/568147a3550346895db4db71/html5/thumbnails/57.jpg)
How many of you have had cavities filled?…if you do, you have the potential to make a tiny battery IN YOUR MOUTH!
• Cavities are filled with a mixture of metals including zinc (Zn), tin (Sn), copper (Cu), and silver (Ag)
• If you bite down on a piece of aluminum foil, the saliva in your mouth, the aluminum foil, and the filling make a little voltaic cell that produces a tiny current that travels through your tooth to the nerve below the filling…it’s a bit UNPLEASANT!
![Page 58: Good Morning Ladies!](https://reader035.vdocument.in/reader035/viewer/2022062803/568147a3550346895db4db71/html5/thumbnails/58.jpg)
Voltaic cell animation
• http://www.blackgold.ab.ca/ICT/Division4/Science/Div.%204/Voltaic%20Cells/demo.htm
![Page 59: Good Morning Ladies!](https://reader035.vdocument.in/reader035/viewer/2022062803/568147a3550346895db4db71/html5/thumbnails/59.jpg)
Orange Packet
#s 4-12, *16, 36, 37, 39
![Page 60: Good Morning Ladies!](https://reader035.vdocument.in/reader035/viewer/2022062803/568147a3550346895db4db71/html5/thumbnails/60.jpg)
![Page 61: Good Morning Ladies!](https://reader035.vdocument.in/reader035/viewer/2022062803/568147a3550346895db4db71/html5/thumbnails/61.jpg)
2. Electrolytic Cells
a.) NONSPONTANEOUS redox reactions – need to put in energyb.) The species more likely to lose electrons is forced to gain electrons
(On Table J – electrons are moving UPHILL, nonspontaneously)
![Page 62: Good Morning Ladies!](https://reader035.vdocument.in/reader035/viewer/2022062803/568147a3550346895db4db71/html5/thumbnails/62.jpg)
2. Electrolytic Cells
c.) Electrons still flow from the anode to the cathode, but now the signs are reversed• The anode is (+) and the cathode is (–)
(electrons are being forced to travel to the negative electrode)
![Page 63: Good Morning Ladies!](https://reader035.vdocument.in/reader035/viewer/2022062803/568147a3550346895db4db71/html5/thumbnails/63.jpg)
2. Electrolytic Cellsd.) Used for
1. Electrolysis: using electricity to break apart (lyse) compounds into their elements
Ex: Obtaining active elements from compounds
2NaCl (l)
![Page 64: Good Morning Ladies!](https://reader035.vdocument.in/reader035/viewer/2022062803/568147a3550346895db4db71/html5/thumbnails/64.jpg)
2. Electrolytic Cellsd.) Used for
1. Electrolysis: using electricity to break apart (lyse) compounds into their elements
Ex: Obtaining active elements from compounds
2H2O (l)
![Page 65: Good Morning Ladies!](https://reader035.vdocument.in/reader035/viewer/2022062803/568147a3550346895db4db71/html5/thumbnails/65.jpg)
![Page 66: Good Morning Ladies!](https://reader035.vdocument.in/reader035/viewer/2022062803/568147a3550346895db4db71/html5/thumbnails/66.jpg)
2. Electrolytic Cellsd.) Used for
2. Electrolytic cells can also be used for electroplating – putting a metal coating on something
![Page 67: Good Morning Ladies!](https://reader035.vdocument.in/reader035/viewer/2022062803/568147a3550346895db4db71/html5/thumbnails/67.jpg)
Anode:
![Page 68: Good Morning Ladies!](https://reader035.vdocument.in/reader035/viewer/2022062803/568147a3550346895db4db71/html5/thumbnails/68.jpg)
Cathode:
![Page 69: Good Morning Ladies!](https://reader035.vdocument.in/reader035/viewer/2022062803/568147a3550346895db4db71/html5/thumbnails/69.jpg)
Comparing & Contrasting Voltaic and Electrolytic Cells
Voltaic Cells (Batteries) Electrolytic Cells)
• SPONTANEOUS redox rxn
• energy is produced (electricity)
• anode is (-)• cathode is (+)
• nonspontaneous redox rxn
• energy is needed (needs electricity)
• anode is (+)• cathode is (-)
![Page 70: Good Morning Ladies!](https://reader035.vdocument.in/reader035/viewer/2022062803/568147a3550346895db4db71/html5/thumbnails/70.jpg)
Comparing & Contrasting Voltaic and Electrolytic Cells
Voltaic Cells (Batteries) Electrolytic Cells)
• redox reactions• anode is where oxidation happens
(An Ox)• anode loses mass
• cathode is where reduction happens (Red Cat)
• cathode gains mass• electrons flow through wire
from anode to cathode
![Page 71: Good Morning Ladies!](https://reader035.vdocument.in/reader035/viewer/2022062803/568147a3550346895db4db71/html5/thumbnails/71.jpg)
Orange Packet
#s 13-15, *17, *18, 38, 40-61
![Page 72: Good Morning Ladies!](https://reader035.vdocument.in/reader035/viewer/2022062803/568147a3550346895db4db71/html5/thumbnails/72.jpg)
![Page 73: Good Morning Ladies!](https://reader035.vdocument.in/reader035/viewer/2022062803/568147a3550346895db4db71/html5/thumbnails/73.jpg)
Bioluminescence vs. Fluorescence
• External energy source excites electrons
• Spectral lines
• UV light
• Redox reaction produces excited electrons
![Page 74: Good Morning Ladies!](https://reader035.vdocument.in/reader035/viewer/2022062803/568147a3550346895db4db71/html5/thumbnails/74.jpg)
![Page 75: Good Morning Ladies!](https://reader035.vdocument.in/reader035/viewer/2022062803/568147a3550346895db4db71/html5/thumbnails/75.jpg)
demos
• CuSO4 in Zn• Hydrolysis of water