രാസമാറ്റങ്ങൾ, ലോഹങ്ങൾ അവയുടെ പ്രത്യേകതകൾ എന്നിവയാണ് ഇന്നത്തെ പാഠത്തിൽ ഉൾക്കൊള്ളിച്ചിരിക്കുന്നത്.
- A change in matter in which no new substances are produced
Physical Change
- A change in matter in which one or more new substances are produced
Chemical Change
- Examples of a chemical change
Burning of wood, Rusting of iron
- Examples of a Physical change
Melting, Freezing, Dissolving
- Elements which may lose electrons in chemical reaction are called
Metals
- Element used in firecrackers to get sparkling red color flame
Strontium
- Element used in firecrackers to get orange color flame
Calcium
- Element used in firecrackers to get green color flame
Barium
- Element used in firecrackers to get yellow color flame
Sodium
- Element stored in oil due to its high reactivity
Barium
- Radioactive element in Alkaline Earth Metals
Radium
- Radioactive liquid element
Francium
- Radioactive gaseous element
Radon
- Naturally occurring compound of Beryllium
Emerald
- Property of metals capable of being drawn into wires is
Ductility
- Property of metals capable of being hammered into very thin sheets is
Malleability
- Property of metals to produce a ringing sound when it stuck with a hard surface
Sonority
- Element which kept in wax
Lithium
- The lightest metal
Lithium
- Densest metal
Osmium
- Hardest Metal
Chromium
- Rainbow metal
Iridium
- The strongest reducing agent
Lithium
- Metals which kept in kerosene due to its high reactivity
Sodium and Potassium
- Elements which are known as soft metals
Sodium and Potassium
- Metal which regulates Blood pressure in human beings
Sodium
- Compound of Sodium which is used as air purifier in submarines and in respiratory equipment
Sodium Peroxide
- Chemicals used in fire extinguishers
Sodium Bicarbonate and Potassium Bicarbonate
- Compound known as Baking Soda
Sodium bicarbonate (NaHCO3)
- Compound known as Washing Soda
Sodium carbonate (Na2CO3)
- Mixture of sodium bicarbonate and Tartaric acid salt
Baking powder
- Compound used as a fixer in photographic films
Hypo (Sodium Thiosulphate)
- Element used as coolant in nuclear reactors
Liquid Sodium
- Chemicals used for purifying water
Potassium Permanganate (KMnO4)
- Metal, related to arthritis
Potassium
- Chemicals used in organic farming for neutralizing acidic soil
Potassium bicarbonate
- Raw material which is used in cement manufacturing
Limestone
- Compound which is used to regulate the setting time of cement
Gypsum
- Perl is composed of
Calcium carbonate and Magnesium Carbonate
- Perl is soluble in
Vinegar
- Gas released when heating limestone
Carbon Dioxide
- Gas which turns Milk of lime into Milky color
Carbon Dioxide
- Coral reefs are composed of
Calcium Carbonate
- Compound contained in Bone mineral
Calcium Phosphate
- Compound used for the dehydration of gases
Calcium oxide
- Chemical name of bleaching powder
Calcium hypochlorite
(To be Continued…)