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What is the only sure way to prove that a chemical reaction has occurred?
The only sure way to prove that a chemical reaction has occurred is to demonstrate a change in the chemical composition of the substances involved. This can be done by analyzing the reactants and products using techniques such as spectroscopy, chromatography, or mass spectrometry to identify any new substances formed. Additionally, measuring physical changes such as color, temperature, gas production, or precipitate formation can also provide evidence of a chemical reaction taking place.
When limestone fizzes when acid is added is physical or chemical change?
The fizzing of limestone when acid is added is a chemical change. This is because a chemical reaction occurs between the acid and the calcium carbonate in the limestone, resulting in the production of carbon dioxide gas.
Is developing film a chemical or physical change?
chemical change :-)
Is drying cloths is chemical change?
It is a Physical Change because i dont know but im sure that is a physical change :P
Is squeezing a lemon a physical or chemical change?
It's a physical change why are some people f$#@%ing stupid and saying a chemical change??
What is the only sure evidence for a chemical reaction?
The only sure evidence for a chemical reaction is the formation of new substances with different properties from the original reactants. This can be observed through changes in color, odor, temperature, or the production of a precipitate or gas.
What is the only sure way to prove that a chemical reaction has occurred?
The only sure way to prove that a chemical reaction has occurred is to demonstrate a change in the chemical composition of the substances involved. This can be done by analyzing the reactants and products using techniques such as spectroscopy, chromatography, or mass spectrometry to identify any new substances formed. Additionally, measuring physical changes such as color, temperature, gas production, or precipitate formation can also provide evidence of a chemical reaction taking place.
Is baking a physical or chemical change?
pretty sure its a chemical change.
Can a bicycle frame have a chemical change?
Sure. A steel frame that begins to rust will be undergoing a chemical change.
Is the color change experienced by the statue of liberty a physical or a chemical change?
i m pretty sure a colour change represents a Chemical change
When a chicken bone turns rubber like and flexible is it a chemical change or physical change?
I'm not sure. I think it is a chemical change.
What methods do scientist use to determine if it is a physical or chemical change?
Scientists distinguish between physical and chemical changes by examining if the change affects the chemical composition of the substances involved. Physical changes alter the appearance or state of a substance without changing its chemical makeup, while chemical changes result in the formation of new substances with different chemical properties through chemical reactions. Techniques such as observing color changes, production of gas, formation of a precipitate, or changes in temperature can help scientists identify whether a physical or chemical change has occurred.
Is size of an object a physical property a physical change a chemical property or a chemical change?
i am pretty sure it is a physical property! :)
When limestone fizzes when acid is added is physical or chemical change?
The fizzing of limestone when acid is added is a chemical change. This is because a chemical reaction occurs between the acid and the calcium carbonate in the limestone, resulting in the production of carbon dioxide gas.
Is developing film a chemical or physical change?
chemical change :-)
When the banana, berries, water, and hot dog are blended, does a physical or chemical change occur?
both physical and chemical change occur
What is the only way to confirm that a chemical change has taken place?
To be certain that a chemical change has taken place you check the composition of the sample before and after the change. The following is a chemical property of water at 4 C is its ability to decompose into hydrogen and oxygen.
