Explain with an experiment that the melting of wax is a physical change.Observe the changes around you and make a list of these changes and categories them into physical and chemical change.(At least 10 for each)
With the help of a suitable diagram explain the change of state of matter , with respect to
1. Kinetic energy
2. Intermolecular force of attraction
3. Intermolecular space
Explain with an experiment that the melting of wax is a physical change.Observe the changes around you and make a list of these changes and categories them into physical and chemical change.(At least 10 for each)
With the help of a suitable diagram explain the change of state of matter , with respect to
1. Kinetic energy
2. Intermolecular force of attraction
3. Intermolecular space
A PHYSICAL change is a type of change in which the form of matter is altered but one substance is not transformed into another. The size or shape of matter may be changed, but no chemical reaction occurs.
Physical changes are usually reversible. Note that whether a process is reversible or not is not truly a criterion for being a physical change. For example, smashing a rock or shredding paper are physical changes that cannot be undone.
Chemical Change Definition A chemical change is a process where one or more substances are altered into one or more new and different substances. In other words, a chemical change is a chemical reaction involving the rearrangement of atoms. While a physical change can often be reversed, a chemically change typically cannot be, except through more chemical reactions. When a chemical change occurs, there is also a change in the energy of the system
Candle burns
When a candle burns, there is both a physical and chemical reaction.
The physical change is quite obvious and in fact, it can be seen. When the candle burns, the wax slowly melts and the candle gets smaller and smaller. This wax, as can be seen, will drip onto the candle and stick to it. When this wax forms back into a solid and stays on the candle, that is another physical change that can occur.
When a candle burns, there is both a physical and chemical reaction.
The physical change is quite obvious and in fact, it can be seen. When the candle burns, the wax slowly melts and the candle gets smaller and smaller. This wax, as can be seen, will drip onto the candle and stick to it. When this wax forms back into a solid and stays on the candle, that is another physical change that can occur.
This is a list of 10 examples of physical changes.
- crushing a can
- melting of an ice cube
- boling water
- mixing sand and water
- breaking a glass
- dissolving sugar and water
- shredding paper
- chopping wood
- mixing red and green marbles
- sublimation of dry ice
This is a list of 10 examples of chemical changes.
1.rusting of iron
2.combustion (burning) of wood
3. metabolism of food in the body
4. mixing an acid and a base, such as hydrochloric acid (HCl) and sodium hydroxide (NaOH)
5. cooking an egg
6. digesting sugar with the amylase in saliva
7. mixing baking soda and vinegar to produce carbon dioxide gas
8. baking a cake
9. electroplating a metal
10. using a chemical battery
A PHYSICAL change is a type of change in which the form of matter is altered but one substance is not transformed into another. The size or shape of matter may be changed, but no chemical reaction occurs.
Physical changes are usually reversible. Note that whether a process is reversible or not is not truly a criterion for being a physical change. For example, smashing a rock or shredding paper are physical changes that cannot be undone.
Chemical Change DefinitionA chemical change is a process where one or more substances are altered into one or more new and different substances. In other words, a chemical change is a chemical reaction involving the rearrangement of atoms. While a physical change can often be reversed, a chemically change typically cannot be, except through more chemical reactions. When a chemical change occurs, there is also a change in the energy of the system
Candle burnsWhen a candle burns, there is both a physical and chemical reaction.
The physical change is quite obvious and in fact, it can be seen. When the candle burns, the wax slowly melts and the candle gets smaller and smaller. This wax, as can be seen, will drip onto the candle and stick to it. When this wax forms back into a solid and stays on the candle, that is another physical change that can occur.
When a candle burns, there is both a physical and chemical reaction.
The physical change is quite obvious and in fact, it can be seen. When the candle burns, the wax slowly melts and the candle gets smaller and smaller. This wax, as can be seen, will drip onto the candle and stick to it. When this wax forms back into a solid and stays on the candle, that is another physical change that can occur.
This is a list of 10 examples of physical changes.
- crushing a can
- melting of an ice cube
- boling water
- mixing sand and water
- breaking a glass
- dissolving sugar and water
- shredding paper
- chopping wood
- mixing red and green marbles
- sublimation of dry ice
This is a list of 10 examples of chemical changes.
1.rusting of iron
2.combustion (burning) of wood
3. metabolism of food in the body
4. mixing an acid and a base, such as hydrochloric acid (HCl) and sodium hydroxide (NaOH)
5. cooking an egg
6. digesting sugar with the amylase in saliva
7. mixing baking soda and vinegar to produce carbon dioxide gas
8. baking a cake
9. electroplating a metal
10. using a chemical battery
