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A substance that can be brought back to its original state is one that undergoes a physical change rather than a chemical change. For example, water can be frozen into ice and then melted back into liquid form, returning to its original state. Similarly, the melting of wax can be reversed by cooling it, restoring it to its original solid form. In contrast, substances that undergo chemical changes, like burning paper, cannot be reverted to their original state.
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What happens to the energy of the environment when a substance goes from on state to another?
When a substance transitions from one state to another, such as from solid to liquid or liquid to gas, energy is either absorbed or released by the environment. For example, during melting, the substance absorbs heat energy from its surroundings, while during freezing, it releases energy back to the environment. This exchange of energy helps maintain thermal equilibrium and can affect the temperature and state of nearby materials. Overall, these phase changes illustrate the dynamic interplay between a substance and its environment in terms of energy transfer.
Is state is physical or chemical?
A physical state is physical and not chemical Physical Property is observed without changing a substance into another substance. Chemical property is the ability of a substance to change into different substance.
What does it mean to say a physical change is reversible?
A physical change is reversible if the substance can return to its original state after the change has occurred. This means that the change does not alter the chemical composition of the substance, allowing it to be reversed through processes like melting, freezing, or evaporation.
Are boiling and melting chemical or physical changes?
It's a physical change. You can turn it back to its original state, and the substance's identity is the same. (ex: water vapor and ice are still H2O)
What kind of changes in substances are always physical changes?
The kinds of changes in substances that are always physical changes are changes in the state. This is the change from solid, to liquid and then to gas and the reverse.
Where can you buy the 2009 pwi 500 magazine since it is no longer in stores?
Since it was bought back by it's orignal publisher, Kappa Publishing in 2009, the PWI 500 has become excluse to it's offical website.
What does the initials SIS mean on the back of a silver peace dollar?
It is the creator and orignal engraver of the coin.
What happens to density when it changes state?
When a substance changes state, its density can change. For example, when a substance transitions from a solid to a liquid state, its density usually decreases. Conversely, when a substance transitions from a gas to a liquid state, its density typically increases.
Is the change of state a physical?
Yes, it is a physical change. For if it was a chemical change, it would not be able to change back; but when you are just changing the state of the item/substance it can be changed back.
Did millionares own jekyll island?
yes! in 1947 the state of GA bought the island back though
Olivia bought two hamburgers at the state fair if each hamburger cost 4.10 and she paid with a 20 Dollar bill how munch change should she get back?
11.80 is what Olivia would get back if she bought two hamburgers at the state fair and paid with a 20 dollar bill.
What is the effect of physical changes?
Physical changes do not change the properties of the substance. You can get back the original state of the substance in most cases by reversing the physical process.
Is a physical change a change of state?
Yes, it is a physical change. For if it was a chemical change, it would not be able to change back; but when you are just changing the state of the item/substance it can be changed back.
I bought a new car I do not like it and want my old car back?
Buyer's remorse goes State by State-see 'lemon Laws', 'Atty Gen'....
Olivia bought two hamburgers at the state fair if each hamburger cost 4.10 and she paid with a 20 Dollar bill how munch change should she get back-?
If Olivia bought two hamburgers at the state fair and each hamburger cost 4.10 and she paid with a 20 Dollar bill she would get 11.80 back.
What did most rich southern planter do with their wealth?
C.They put it back into their plantations and bought slaves.
What will happen if non volatile substance is heated?
Heating a non-volatile substance will cause it to increase in temperature and potentially change its physical state (e.g. melting or sublimating) or undergo a chemical reaction. Once the heat source is removed, the substance will cool back down to its original state.
