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Is NaCl dissolved in a jar leaving salt behind a chemical change or a physical change?
Wiki User
∙ 6y ago
Evaporation of water is a physical change.
Wiki User
∙ 6y ago
When NaCl is dissolved in a jar, it undergoes a physical change. This is because the chemical composition of NaCl remains the same, but its physical state changes from a solid to a liquid solution. The salt can be reclaimed by evaporating the liquid and it would still have the same chemical properties as the original NaCl.
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Name the method by which salt dissolved in water is removed?
Evaporate the water, leaving the salt behind.
Is salt dissolving in a glass of water a chmical change?
A chemical change is when a substance is formed into an entirely new substance, with different properties, as such, a chemical change cannot be reversed. So in answer to your question, salt, in this case the solute (the substance that is being dissolved), is dissolved into water, a solvent (the substance that a solute is dissolved into), so you would think that a chemical change has taken place. But actually, a physical change (when something is changed, but keeps its properties, for example, when you break chalk in two, it is still chalk, only smaller), because if you heat the saltwater, then the water will evaporate, leaving the salt behind, in its original form.
Did a chemical reaction take place when sulferpowder and iron filling were mixed without heating explain your answer?
No, the sulfur and iron still have their individual properties. Iron is still magnetic and the sulfur can be dissolved by carbon disulfide leaving behind the iron.
Can distillation separate dissolved substances through physical change?
Yes, distillation can separate dissolved substances through physical change by utilizing differences in boiling points to separate the components. When the solution is heated, the component with the lower boiling point vaporizes first, leaving behind the other component as a liquid or solid. The vapor is then condensed back into a liquid, resulting in the separation of the substances.
Is salt water drying up a physical or chemical change?
The evaporation of salt water is a physical change because it does not alter the chemical composition of the water or salt. The water is simply changing from a liquid to a gas, leaving the salt behind.
Formation of stalagmites in a cave physical or chemical change?
The formation of stalagmites in a cave is a chemical change. This process occurs when water containing dissolved minerals drips from the ceiling of a cave, leaving behind deposits of minerals as it evaporates. Over time, these mineral deposits accumulate and solidify into stalagmites.
Name the method by which salt dissolved in water is removed?
Evaporate the water, leaving the salt behind.
Chemical rock formed by crystallization of excess dissolved minerals?
The chemical rock primarily formed through precipitation from mineral-rich water that has partially evaporated, leaving behind excess dissolved minerals that can crystallize. Examples include limestone formed from the precipitation of calcite, and rock salt formed from the crystallization of halite.
Is coffee added to water an example of chemical change?
When coffee is added to water, that is a physical change. The coffee does not undergo a chemical reaction, the various chemical constituents of coffee remain the same. What changes is that the coffee is dissolved in water. If the water were to evaporate, leaving the coffee behind, it would be the same as it was (not counting the loss of some volatile constituents which would also evaporate, along with the water) before it was added to water.
Is salt dissolving in a glass of water a chmical change?
A chemical change is when a substance is formed into an entirely new substance, with different properties, as such, a chemical change cannot be reversed. So in answer to your question, salt, in this case the solute (the substance that is being dissolved), is dissolved into water, a solvent (the substance that a solute is dissolved into), so you would think that a chemical change has taken place. But actually, a physical change (when something is changed, but keeps its properties, for example, when you break chalk in two, it is still chalk, only smaller), because if you heat the saltwater, then the water will evaporate, leaving the salt behind, in its original form.
Did a chemical reaction take place when sulferpowder and iron filling were mixed without heating explain your answer?
No, the sulfur and iron still have their individual properties. Iron is still magnetic and the sulfur can be dissolved by carbon disulfide leaving behind the iron.
What kind of residue does acetone leave behind?
Acetone typically evaporates completely, leaving behind little to no residue. If any residue is left behind, it would likely be a small amount of solid impurities or contaminants that were dissolved in the acetone.
Can distillation separate dissolved substances through physical change?
Yes, distillation can separate dissolved substances through physical change by utilizing differences in boiling points to separate the components. When the solution is heated, the component with the lower boiling point vaporizes first, leaving behind the other component as a liquid or solid. The vapor is then condensed back into a liquid, resulting in the separation of the substances.
Is salt water drying up a physical or chemical change?
The evaporation of salt water is a physical change because it does not alter the chemical composition of the water or salt. The water is simply changing from a liquid to a gas, leaving the salt behind.
Mineral whos common name is salt?
The mineral is halite, whose main chemical component is Sodium Chloride (NaCl). Halite is an evaporite mineral - i.e. it forms as a result of evaporating water leaving behind dissolved chemicals as mineral deposits.
Rocks formed by evaporation of water are called?
Rocks formed by the evaporation of water are called evaporites. Examples of evaporites include rock salt, gypsum, and sylvite. These rocks form as a result of the precipitation of minerals as the water evaporates, leaving behind the dissolved materials.
What is boiling out a solvent?
Boiling out a solvent is when you heat up a solution to a high enough temperature that the solvent (liquid) evaporates, leaving behind whatever you have dissolved.
