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When a substance changes into a different substance a blank change has occurred?
If form changes but identity doesn't change then it is a physical change.
Is formation of water from its element physical change?
yes
What substance cannot undergo a chemical change?
If you are not concerned about atoms, electrons, neutrons, protons and other sub atomic particles, but confine to chemical substances occurring in nature or man made, the substance that cannot be broken into simpler substances is an "element" (usually enumerated in a periodic table).A chemical element cannot be decomposed into a simpler substance.Elements. They are defined as substances in their simplest form and cannot be broken down or decomposed into any simpler substances. They include all elements in the periodic table of elements.
Is magnesium physical change or chemical change?
Magnesium is not a change of any sort. It is a metallic element that can undergo both physical an chemical changes.
Is potassium a physical or chemical change?
Potassium is not a change; potassium (K) is a chemical element.
Can an element be decomposed by chemical change?
No
Can sodium be decomposed by a chemical change?
No. Sodium is an element and elements cannot be broken down (decomposed) by a chemical change.
Why charring of sugar is a chemical change OR A physical change?
It is a chemical change because sugar is decomposed.
Carbon that cannot be decomposed a physical property or a chemical property?
Chemical property, it cannot be decomposed by ordinary chemical change.
Is toasting of bread a physical or chemical change?
Physical ------------------- It is a chemical change because some compounds from bread are thermally decomposed. The reaction is not reversible.
Is a Toasting a piece of bread a chemical change or physical change?
It is a chemical change because some compounds from bread are thermally decomposed.
Is toasting bread a physical or chemical change?
It is a chemical change because some compounds from bread are thermally decomposed.
A pure substance that cannot be broken down into other substances by chemical means?
A substance that can not be decomposed into simpler substance by a chemical or physical means is a chemical element.
Which substance can not be decomposed by a chemical change H2O Ne N2O or HF?
Ne - neon, is an element and also a noble gas. It can not be decomposed by a chemical reaction. All the other substances can be.
Is melting a phyical or chemical change?
Physical. Melting is always a physical change.
What is the difference between a chemical change and physical change?
A physical change changes the physical properties of an element like color where chemical changes change the chemical properties of an element and usually can't be undone.
When a substance changes into a different substance a blank change has occurred?
If form changes but identity doesn't change then it is a physical change.
