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Is dissolving sugar in hot water a chemical or physical change?
The common sugar is Sucrose when it becomes soluble in water it is converted into Glucose and fructose on evaporating you can not get back the crystals of sucrose so it is a chemical change.
Is dissolution of common salt is chemical or physical change?
It is a physical process; on the other hand dissociation in water is a chemical process.
Are physical changes and chemical changes the same?
No. A physical change is a change in which no new substances are formed. Change of state is a common example of physical change. A chemical change is a change in which one or more new substances are formed. Thus, the main difference between chemical and physical changes is whether new substances are formed.
Is bubbling and fizzing a physical change or chemical change?
Physical. If a substance releases bubbles, it is converting some of its liquid into a gaseous state. The chemical properties do not change, only its present state. A most common physical change is that of watching ice melt in glass of water.
What does physical and chemical change have in common?
i think its tat both changes require energy....
What reactants and products of a chemical change have in common?
The reactants and products of a chemical change have nothing in common - hence the name "chemical change".
Is melting butter an example of chemical change?
Partly physical, partly chemical. Melted butter has different chemical properties than solid butter. The melting process, as with chocolate, is not reversible. Proteins in the butter can become denatured, and isomerization of lipids to trans fats occurs. Phase change is a common example of physical change, but chemical change also occurs in this case.
What do physical and chemical change have in common?
they both alter an object in some way or they both change there main object. THE CORRECT ANSWER WOULD BE>>>> there is no change in the total mass involved in the change
What is digesting food an example of?
Digesting food is a very good example of a chemical change. However, it is also a common example of a physical change with the body.
What is meant by properties of metals?
Every metal, which are elements, has chemical and physical properties. Chemical properties can only be observed when the composition of the substance changes. An example is wood burning, the wood is no longer the same material. Also note that these changes are called chemical changes. Physical properties can be observed only when the composition does not change. An example is the color, or the taste of a substance. In addition physical changes are observed only if the composition has not changed. An example is tearing a piece of paper, the paper still has the same composition but has gone through a physical change. A common misconception between chemical and physical changes is that a physical change can be reversed while a chemical change cannot not be reversed which is absolutely false.
Is splitting water through electrolysis into O2 and H2 gasses a physical or chemical change?
In a way it is both physical and chemical, because a chemical change is changing how the molecule is "built," while a physical change is the transformation from one form to the other. I would consider splitting water through electrolysis as a chemical change at first because physical change is keeping the build of a molecule the same while it's form changes. You could also say that the splitting itself occurs first, meaning chemical change first occurs. Physical change would the occur later because the points of physical forms change based on the atom or molecule. The time difference in which occurs first would be very hard to measure, down to nanoseconds, but according to common scientific sense chemical change would occur first. The true answer to this question would be that it is chemical change, because you wanted to know what the splitting part was. Hope this helps!
What are the characteristics of physical change?
Some common characteristics of physical changes are change in texture, change in shape, and change in state. There can also be a change in temperature and a change in color, but these are also common characteristics of chemical changes. A physical change does not change the composition of the original substance.
Changing form without a change in chemical properties?
This would be defined as a physical change. In chemistry, this would be defined as anything from a change in mass or volume to a change in state (solid, liquid, gas). As long as the substance does not change in molecular structure, it is mostly a physical change. Common indicators of a chemical change is change in color, production of light, production of extensive heat, production of uncommon smells, or even bubbling.
Common physical and chemical properties of Na?
See this link.
What is the liquid used for dissolving?
Dissolving what?Water is a pretty common solvent.
What chemical change happens on an iron?
Rusting is the common chemical reaction for iron.
What are some common example of physical and chemical change that occur in the environment?
Some Physical Changes:> Water Cycle> Tearing of paper> Breaking of glassesSome Chemical Changes:> Photosynthesis ( the process of manufacturing food in plants )> ripening of fruits> burning> cooking
What do physical and chemical properties have in common?
Both are specific for each material.
What is the most common food hazard in a catering operation is it chemical phtical viral?
Microbiological, chemical, physical.
If the elements of the periodic table were sequenced by density from smallest to largest what would they have in common Would they have similar chemical and physical properties?
Each chemical element has specific chemical and physical properties.
Why is broken glass a physical change?
Broken glass is a physical change because the glass does not undergo any chemical changes by being broken. The glass could be returned to its original shape through physical means (melt and reform it). Glass is mostly silicon oxides, and the chemical bonds between the silicon and oxygen (which comprise the bulk of common glass) are not affected by breaking the glass.
Do bio-molecules have common physical and chemical properties?
No. Biomolecules are a diverse group, and do not have common physical and chemical properties. Proteins, carbohydrates, lipids, nucleotides, etc. are all different both physically and chemically.
What are the 3 things common to all chemical reactions?
There are actually five things that are common to all chemical reactions. These are change of color, change of state, evolution of a gas, formation of a precipitate, and change in temperature.
Is acidity chemical or physical properties?
It is a chemical found in common, everyday foods such as: Orange juice, oranges, pinaples,...
What is a common sign that a chemical change has occurred?
A change in pH or conductivity will always hint to a chemical change. Also less technical signs can be a change in volume or color
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