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You can determine if a substance has undergone a chemical change by observing specific indicators, such as the production of gas (bubbles), a change in color, the formation of a precipitate, or a change in temperature (exothermic or endothermic reactions). Additionally, if the original substance cannot be easily recovered or transformed back into its initial state, it is likely that a chemical change has occurred.
What else can I help you with?
Is oxidation an example of a chemical change?
Oxidation is a chemical change. This is a chemical change because it has formed into a new substance and cannot change back! The chemical identity of the metal has been changed and will require some other change to change it back.
What is the différence between a chemical change and a physical change?
physical changes are thing you can see (note a change in color could be a percipatate forming) chemical release energy in some way shape or form or it could form a perciapte which you can't see through
a change in the chemical properties of substance results in a?
A substance can take on three physical states: Solid, liquid, or gas. The main physical changes from a thermodynamic standpoint are the amount of entropy(disorder) of the molecules of the substance. Density, temperature, volume are also characteristically different at each physical state and can be used to manipulate compounds between the three.
Is salt dissolving in water physical change?
Yes, salt dissolving in water is a physical change because it does not involve a change in the chemical composition of the salt. The salt molecules are simply dispersed in the water, but they remain the same chemical substance.
Is heating a wood splint a chemical or physical change?
Heating a wood splint is a chemical change. If this was done in something like a test tube, you will see many things occur that indicate this. First, you will see a werid kind of smoke, the splint turning into black stuff, and a really bad smell. Well the smoke is CO2 and the black stuff is ash from the burning. Because there is a new substance being made and the identity of the original substance(your splint) has changed, the reaction is chemical.
When you see stuff is that a chemical change?
This question is extremely general (no offense) but if by you mean "see stuff" you mean producing a new substance, then yes, it is a chemical change.
What is the difference between a phisical change and a chemical change?
A physical change is one you can see. It changes the size, shape, or color of something. A chemical change is one that changes the composition of something. Basically, when a substance is changed into a different substance.
What is the differences between chemical and physical change?
A chemical change involves a change in a substance's chemical properties (characteristics that describe how it interacts with other substances).A physical change involves a change in a substance's physical properties(characteristics that describe certain features one can see with their 5 senses).
Is it chemical or physical change if you leave your bicycle out in the rain and it rusts?
Chemical, as rust is iron oxide. The iron is turning from iron to iron oxide, which (as you can see) is a chemical change. In general, a colour change usually indicates a chemical change.
What must you know if a chemical change occurs?
fizzingcolor change (of course, this exempts artificial coloring)odorformation of precipitateproduction of gasformation of new substance (elemental bonding)
Is composting leaves a physical or chemical change?
Chemical.
If a firefly glows in the dark is that a chemical or physical change?
It's a physical change. A chemical change is when a new substance is formed. A physical change is when something looks, feels, tastes, or smells different, but it's the same substance. You see the firefly is always glowing, it's just the fact that the human eye cannot see it because it is being over powered by the light of the Sun; but it's still the same firefly.
Is oxidation an example of a chemical change?
Oxidation is a chemical change. This is a chemical change because it has formed into a new substance and cannot change back! The chemical identity of the metal has been changed and will require some other change to change it back.
What is the différence between a chemical change and a physical change?
physical changes are thing you can see (note a change in color could be a percipatate forming) chemical release energy in some way shape or form or it could form a perciapte which you can't see through
a change in the chemical properties of substance results in a?
A substance can take on three physical states: Solid, liquid, or gas. The main physical changes from a thermodynamic standpoint are the amount of entropy(disorder) of the molecules of the substance. Density, temperature, volume are also characteristically different at each physical state and can be used to manipulate compounds between the three.
What changes during chemical change?
In a Chemical Change, atoms rearrange to form one or more new substance. They do this by breaking bonds and forming new ones.The identity of the substance undergoing the change is altered. In short: it depends on the chemical change.You would see a gas given off, the colour might change and it may change states that can not be turned back to what it was.hope I've answered your questio :)During a chemical change, the properties change and a new substance is formed. Temperatures change, colors change or smoke is present, and/or gas/bubbles are releasedA new substance is created and heat, light, or gasses are given off.Even though the persons answer is very well explained (down below) but I think you are looking for a more simple answer which is: Burning PaperA new chemical is formed. Evidence of this is cooling or heating of the samples as well as bubbles meaning a gas is formed.Vinegar and baking soda form a gas and it bubbles.Forms different substance.
Is salt dissolving in water physical change?
Yes, salt dissolving in water is a physical change because it does not involve a change in the chemical composition of the salt. The salt molecules are simply dispersed in the water, but they remain the same chemical substance.
