Density is a physical property that is defined as mass divided by volume. It can be used to compare unknown solids by measuring their densities. Density can be measured using a balance to find mass and a ruler or graduated cylinder to find volume. A suspension is a type of mixture that is distinguished by having distinct layers and particles that can be seen settling. A mixture is a physical combination of substances that can be separated physically, while a compound is a chemical combination that can only be separated chemically and exists in fixed ratios with unique properties.
State of matter and properties of matter (Part-7)(Solid-crystalline, Amorpho...Ms. Pooja Bhandare
CRYSTALLINE SOLID, Types of Crystalline solid, AMORPHOUS SOLID, Difference between crystalline solid and amorphous solid, Why does the amorphous form of drug have better bioavaibility that crystalline couterpaerts?, Polymorphism,
TYPES OF POLYMORPHISM, PROPERTY OF POLYMORPHS, Methods of preparation of Polymorphs, Methods to determine Polymorphism Characterization of Polymorphs, Pharmaceutical Application
State of matter, Properties of various state of matter, Volume, Diffusion, Compressibility, Rigidity or Fluidity, Density, Shape, Kinetic energy of particles at a given temperature, Intermolecular space, Intermolecular Force of attraction, Arrangement of molecules, Changes in the state of matter, Enthalpy, Entropy, Triple point, Freezing, Melting, Deposition, Sublimation, Vaporization and Condensation
State of matter and properties of matter (Part-6)(Relative humidity, Liquid ...Ms. Pooja Bhandare
RELATIVE HUMIDITY, Humidity, Wet and Dry Hygrometer, LIQUID COMPLEX, LIQUID CRYSTALS, Types of liquid crystals, GLASSY STATES, Characteristics glassy state, Types of glassy state, What is the Glass Transition Temperature?
State of matter and properties of matter (Part-7)(Solid-crystalline, Amorpho...Ms. Pooja Bhandare
CRYSTALLINE SOLID, Types of Crystalline solid, AMORPHOUS SOLID, Difference between crystalline solid and amorphous solid, Why does the amorphous form of drug have better bioavaibility that crystalline couterpaerts?, Polymorphism,
TYPES OF POLYMORPHISM, PROPERTY OF POLYMORPHS, Methods of preparation of Polymorphs, Methods to determine Polymorphism Characterization of Polymorphs, Pharmaceutical Application
State of matter, Properties of various state of matter, Volume, Diffusion, Compressibility, Rigidity or Fluidity, Density, Shape, Kinetic energy of particles at a given temperature, Intermolecular space, Intermolecular Force of attraction, Arrangement of molecules, Changes in the state of matter, Enthalpy, Entropy, Triple point, Freezing, Melting, Deposition, Sublimation, Vaporization and Condensation
State of matter and properties of matter (Part-6)(Relative humidity, Liquid ...Ms. Pooja Bhandare
RELATIVE HUMIDITY, Humidity, Wet and Dry Hygrometer, LIQUID COMPLEX, LIQUID CRYSTALS, Types of liquid crystals, GLASSY STATES, Characteristics glassy state, Types of glassy state, What is the Glass Transition Temperature?
This will give you a complete idea about this topic " is matter around us pure.
It is the concept from ncert class9 and it is also useful for ntse level 1 exam
After several job applications, I finally got to get an interview for a tutor position. However, this time the interview was a bit different than all the others I had attended as a viewer. Most interviews were, as a rule, a presentation of the candidate skills and experience matching the job description. Mine had to be different, and more challenging.
The rules:
Fifteen-minute presentation of a lecture on one of 3 subjects, aiming at level 1 students; followed by 10 minutes presentation of my CV.
Here it is. Ohh, and by the way, I got the job.
Contaminants in two populations of edible crab Cancer pagurus: environmental...Sara Barrento
Oral presentation at the Western Europe Fish Technologists Association, 38th (WEFTA) annual meeting, Florence, Italy 17-19 September. Edible crab, Cancer pagurus, is much appreciated in Mediterranean countries. The muscle of claws and the brown meat (hepatopancreas) are traditionally eaten in France, Spain, Italy and Portugal. This presentation shown the accumulation of contaminants in the different edible portions of crabs caught in the Scottish coast and the English Channel.
This will give you a complete idea about this topic " is matter around us pure.
It is the concept from ncert class9 and it is also useful for ntse level 1 exam
After several job applications, I finally got to get an interview for a tutor position. However, this time the interview was a bit different than all the others I had attended as a viewer. Most interviews were, as a rule, a presentation of the candidate skills and experience matching the job description. Mine had to be different, and more challenging.
The rules:
Fifteen-minute presentation of a lecture on one of 3 subjects, aiming at level 1 students; followed by 10 minutes presentation of my CV.
Here it is. Ohh, and by the way, I got the job.
Contaminants in two populations of edible crab Cancer pagurus: environmental...Sara Barrento
Oral presentation at the Western Europe Fish Technologists Association, 38th (WEFTA) annual meeting, Florence, Italy 17-19 September. Edible crab, Cancer pagurus, is much appreciated in Mediterranean countries. The muscle of claws and the brown meat (hepatopancreas) are traditionally eaten in France, Spain, Italy and Portugal. This presentation shown the accumulation of contaminants in the different edible portions of crabs caught in the Scottish coast and the English Channel.
1. Density
• Density= mass (g)/volume (mL)
• You can compare unknown solids by finding their
densities and seeing if they are the same
• Density can be measured by using a triple beam
balance to find the mass, then if it is a geometric
shape you could use a ruler, or a graduated
cylinder
• It is a physical characteristic
2. Suspension
• A suspension is a type of mixture
• It can be distinguished as a suspension
because it has layers
3. Mixture
• Matter can either be a compound or a mixture
• A mixture is a physical combination
• It can only be broken down physically
• It can be in any ratio (no fixed or uniform ratio)
• No one unique set of properties
4. Compounds
• When matter is not classified as a mixture
it is a compound
• A compound is a chemical combination
• Can only be broken down chemically
• Always in a fixed ratio
• All compounds have a unique set of
properties
5. Boiling and Melting
Point
• The temperature at which a substance boils
or melts
• It is a physical property
6. Physical Properties
• Density, Hardness, Boiling Point, Melting
Points, Malleability,Viscosity, Conductivity
• These are physical changes to a matter
8. Filtration
• A process that separates materials based
on the size of the particles and/or
solubility
•
9. Evaporation
• A process used to isolate a solid dissolved in liquid
• Property: Solubility
• Disclaimer:You are not going to isolate a pure
sample of all components of a mixture
•
10. Chemical Properties
• This is a property produces a change in the composition of the matter
• Chemical properties can only be observed when the substances in a sample
of matter are changing into different substances
• Three common types of evidence of a chemical property are a change in
color, production of gas, and formation of a precipitate
• Two examples of chemical changes are flammability, and reactivity
• The main difference between a physical change and a chemical change is that
a chemical change will change the composition of the matter and a physical
change will not
12. Reactivity
• Reactivity is the property that describes
how readily a substance combines
chemically with other substances
• This nail has reacted with oxygen and
water
13. Precipitate
• A precipitate is any solid that forms and
separates from a liquid mixture
• Ex: If lemon juice or vinegar is added to
milk
