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Is turning bread into toast a physical or chemical change and why?
It is both. You dry the moisture out of the bread. However, the browning is a chemical change, as the chemical bonds are changed.
Is decantation a physical or a chemical change?
Physical, as no chemical bonds are broken/ formed in the process... it's merely a process of gravity where heavier components of a mixture that are not dissolved fall to the bottom
What is happening to the molecules (atoms) during physical and chemical changes?
nothing happens or in other words, nothing happens to the molecules. the only change, is in the way they move closer and furthuer from each other. pretty much it make change in look slightly but it is still in the same substance. it may change its state of matter
Is a grape drying in the sun a chemical or physical change?
It is a chemical change. Fermentation causes bonds to break within a compound and new bonds form thus chemically changing the initial 'reactant'.
What is the difference between Chemical vs physical change?
A physical change is when something changes to a different state (solid, liquid or gas), but it does not change chemical composition; for example, it remains H2O. In a chemical change, new chemical bonds are formed.
Is a chemical bond a physical change?
The formation of chemical bonds is a chemical change.
Is chemicals bonding a physical or chemical change?
The formation of chemical bonds is a chemical change.
What happens to chemical change during a chemical change?
when a chemical change occurs, chemical bonds are broken up
Scientifically what is a physical change?
A change in which no chemical bonds are broken or formed.
Is tearing a paper a chemical or a physical change?
Tearing paper represents a physical and not a chemical change. Chemical bonds are not broken in this instance, but paper is physically separated (by force) from other paper.
What is the difference between chemical from physical change?
Chemical changes result in the formation of new substances with different chemical properties, while physical changes do not change the chemical composition of the substance. In a chemical change, bonds are broken and new bonds are formed, leading to a different chemical structure. On the other hand, physical changes involve a change in appearance, state, or size of a substance without altering its composition.
Is decomposing water physical or chemical change?
Chemical change; bonds are broken when water decomposes into hydrogen and oxygen.
What happens to the bonds between atoms during a chemical change?
They break and new bonds are formed
Why is drying considered a physical change?
No new chemical bonds need to be formed or existing chemical bonds broken during drying.
Is expansion of air chemical change?
No. "Chemical change" means that the bonds between atoms are rearranged.
What happens in a chemical change but not in a physical change?
If you bend a paper clip it is a physical change because it is still a paper clip. It's chemical identity has not changed. In a chemical change, the chemical identity of a substance changes. For example, if the paper clip were made of steel and rusted, then it's chemical identity would change to include oxygen chemically bonded to the metal, iron oxide.
What are the Changes in matter?
THE PHYSICAL CHANGE AND THE CHEMICAL CHANGE -physical change is characterized by the change of the physical state of an object and it is reversible while chemical change is irreversible since atoms and bonds are broken down to form a new substance
