MindMap Gallery Organic Chemistry-Sodium and its Compounds Mind Map
This is a mind map about organic chemistry - sodium and its compounds, including sodium oxide and sodium peroxide, sodium carbonate and sodium bicarbonate, etc.
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Avatar 3 centers on the Sully family, showcasing the internal rift caused by the sacrifice of their eldest son, and their alliance with other tribes on Pandora against the external conflict of the Ashbringers, who adhere to the philosophy of fire and are allied with humans. It explores the grand themes of family, faith, and survival.
This article discusses the Easter eggs and homages in Zootopia 2 that you may have discovered. The main content includes: character and archetype Easter eggs, cinematic universe crossover Easter eggs, animal ecology and behavior references, symbol and metaphor Easter eggs, social satire and brand allusions, and emotional storylines and sequel foreshadowing.
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Sodium and its compounds
Sodium (Na)
physical properties
color
silver white
melting point
Low
hardness
Small
density
Smaller than water, thicker than kerosene
electrical conductivity, thermal conductivity
good
chemical properties
Reacts with non-metallic elements
Reacts with oxygen (O₂)
normal temperature
Phenomenon
darkens quickly
product
Sodium oxide (Na₂O), white solid
chemical equation
4Na O₂﹦﹦﹦﹦2Na₂O
heating
Phenomenon
Melts into bright silver-white pellets, the flame turns yellow, producing a light yellow solid
product
Sodium peroxide (Na₂O₂) light yellow solid
chemical equation
2Na O₂﹦﹦﹦﹦Na₂O₂
Reacts with chlorine gas (Cl₂)
2Na Cl₂﹦﹦△﹦﹦2NaCl
Reacts with hydrogen (H₂)
2Na H₂﹦﹦﹦﹦2NaH
22NaH 2H₂O﹦﹦﹦﹦2NaOH H₂↑
Reacts with carbon dioxide (CO₂)
4Na 3CO₂﹦﹦High temperature﹦﹦2Na₂CO₃
Reacts with sulfur (S)
2Na S﹦﹦△﹦﹦Na₂S
reacts with water alkyd
Reacts with water (H₂O)
2Na 2H₂O﹦﹦﹦﹦2NaOH H₂↑
Reacts with ethanol (CH₃CH₂OH)
2Na 2CH₃CH₂OH﹦﹦﹦﹦2CH₃CH₂ONa H₂↑
Reacts with acetic acid (CH₃COOH)
2Na 2CH₃COOH﹦﹦﹦﹦2CH₃COONa H₂↑
Reacts with acid (H⁺)
2Na 2H⁺﹦﹦﹦﹦H₂↑ 2Na⁺
Reacts with molten salt
Na KCl﹦﹦﹦﹦NaCl K↑
High boiling point to prepare low boiling point
react with solution
Reacts with acid (H⁺)
Acid first, then water
React with salt
Water first and then determine whether other reactions occur.
Analysis of changes in Na exposed to air and its reaction
Silvery white metallic sodium (Na)
surface darkening (Na₂O)
white solid (NaOH)
surface becomes solution (NaOH deliquesces)
white lumpy substance (Na₂CO₃·10H₂O)
White powdery substance (Na₂CO₃)
Preparation and storage purposes
Preparation
2NaCl (melted)﹦﹦Electrolysis﹦﹦2Na Cl₂↑
save
Sealed and stored, usually in paraffin oil or kerosene
use
Sodium-potassium alloy can be used as thermal conductive agent in atomic reactors
Acts as a strong reducing agent to reduce certain rare metals from their chlorides
4Na TiCl₄﹦﹦High temperature﹦﹦Ti 4NaCl
Make light source and make high pressure sodium lamp
Test points
Sodium oxide and sodium peroxide
Sodium oxide (Na₂O)
physical properties
color
White
state
solid powder
chemical properties
Reacts with water
Na₂O H₂O﹦﹦﹦﹦2NaOH
Reacts with oxygen (O₂)
2Na₂O O₂﹦﹦﹦﹦2Na₂O₂
Reflects with carbon dioxide (CO₂)
Na₂O CO₂﹦﹦﹦﹦Na₂CO₃
Reacts with hydrogen ions (H⁺)
Na₂O 2H⁺﹦﹦﹦﹦2Na⁺ H₂O
use
Prepare sodium hydroxide
Test points
only ionic bonds
sodium peroxide
physical properties
color
light yellow
solid
solid
chemical properties
Reacts with water (H₂O)
Na₂O₂ 2H₂O﹦﹦﹦﹦4NaOH O₂↑
Essence: Na₂O₂ 2H₂O﹦﹦﹦﹦2NaOH H₂O₂ 2H₂O₂﹦﹦﹦﹦2H₂O O₂
Reflects with carbon dioxide (CO₂)
2Na₂O₂ 2CO₂﹦﹦﹦﹦2Na₂CO₃ O₂↑
1Na₂O₂~1e⁻
Reacts with hydrogen ions (H⁺)
2Na₂O₂⁺ 4H⁺﹦﹦﹦﹦Na⁺ H₂O
Reacts with nitrogen dioxide (NO₂)
2Na₂O₂ NO₂﹦﹦﹦﹦2Na₂NO₃
Strong oxidizing property
Reacts with sulfur dioxide (SO₂)
Na₂O₂ SO₂﹦﹦﹦﹦Na₂SO₄
Reacts with ferrous chloride (FeCl₂)
Phenomenon: reddish brown precipitate is generated
Principle: 3Na₂O₂ 6FeCl₂ 6H₂O﹦﹦﹦﹦4Fe(OH)₃ 6NaCl 2FeCl₃
Reacts with hydrogen sulfide (H₂S)
Phenomenon: The solution becomes turbid
Principle: Na₂O₂ H₂S﹦﹦﹦﹦2NaOH S↓
Reacts with sodium sulfite (Na₂SO₃)
Na₂O₂ Na₂SO₃ H₂O﹦﹦﹦﹦Na₂SO₄ 2NaOH
Weak reduction
reacts with potassium permanganate
use
Used as a bleaching agent (for Xiaobai Textile, it cannot be used for bleaching food)
Strong oxidants
Nourishing agent (used in breathing masks and submarines)
Test points
Sodium carbonate and sodium bicarbonate
Sodium carbonate (Na₂CO₃)
physical properties
Commonly known as
Soda ash (soda ash is not an alkali), soda
color
White
state
powder
solubility
Easily soluble in water, water solubility is alkaline (Na₂CO₃ hydrolysis)
chemical properties
Thermal stability: Na₂CO₃ does not decompose when heated
React with hydrochloric acid (HCl)
Excess hydrogen chloride (HCl)
Na₂CO₃ 2HCl (excess)﹦﹦﹦﹦2NaCl H₂O CO₂
A small amount of hydrogen chloride (HCl)
Na₂CO₃ HCl (small amount)﹦﹦﹦﹦NaCl NaHCO₃
React with base
Reacts with sodium hydroxide (NaOH)
No reaction
Reacts with clarified lime water (Ca(OH)₂
Na₂CO₃ Ca(OH)₂﹦﹦﹦﹦CaCO₃↓ 2NaOH
Reacts with salt (CaCl)
Ca₂⁺ CO₃²⁻﹦﹦﹦﹦CaCO₃↓
Test points
sodium bicarbonate
physical properties
Commonly known as
baking soda
color
White
state
crystal
solubility
Easily soluble in water, aqueous solution becomes alkaline (Both less alkaline and less soluble than sodium carbonate)
chemical properties
Thermal stability
2NaHCO₃﹦﹦△﹦﹦Na₂CO₃ H₂O CO₂↑
React with hydrochloric acid
NaHCO₃ HCl﹦﹦﹦﹦NaCl H₂O CO₂↑
reacts with sodium hydroxide
React with clarified lime water
React with salt
Test points
alkali metal