you can observe chemical reactions from its smell, colour, shape, or the change in it's properties
physical (because you can observe it without inducing a chemical reaction).
a precipitate is a solid that forms during a chemical reactions
It depends on the chemical reaction. For example when you burn something it is a chemical reaction, but that is way different than if you mix baking soda and vinegar which is also a chemical reaction. It changes the matter into a different chemical matter make up of that substance.
Volume is a physical property.
To make a chemical reaction at home, you can mix different substances together, such as vinegar and baking soda, to observe a reaction. Follow safety guidelines and use appropriate protective gear when conducting experiments.
Burning of metals in fireworks is a chemical reaction and is what makes the fireworks glow with different colors.
The way I remember the difference, is: a physical property is a property that you can observe without changing it (or observe without a chemical reaction). So properties like melting point, boiling point, density, color, hardness are all physical properties. A property like 'reacts with water' could only be observed by performing the reaction to observe the change.
The way I remember the difference, is: a physical property is a property that you can observe without changing it (or observe without a chemical reaction). So properties like melting point, boiling point, density, color, hardness are all physical properties. A property like 'reacts with water' could only be observed by performing the reaction to observe the change.
Analyzing the chemical equation and understanding the stoichiometry of the reaction, conducting experiments to observe and identify the products formed, and using analytical techniques such as spectroscopy, chromatography, or mass spectrometry to analyze the products.
If an atom undergoes a chemical reaction, it involves rearrangement of electrons in the outer shell to form new chemical bonds. On the other hand, if it undergoes a nuclear reaction, it involves changes in the atomic nuclei, resulting in the formation of different elements or isotopes. To determine whether it was a chemical or nuclear reaction, observe whether there are changes in the electron configuration or in the atomic number and mass of the atom.
You might observe fizzing or bubbling as the tablet dissolves in the water due to the release of carbon dioxide gas. This effervescent reaction is evidence of a chemical reaction occurring between the ingredients in the tablet and water.
Chemical reaction