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Is a piece of ice melting and reacting with sodium a physical or chemical change?
The melting of ice is a physical change, as it changes from solid to liquid without altering its chemical composition. However, when the melted ice reacts with sodium to form a new compound, it is a chemical change because the chemical composition of the substances involved is altered.
Can a piece of copper be broken down into some simpler type of matter?
Not chemically. The molecules of an element contain only one form of atom, although these can have different numbers of neutrons.The copper can be fissioned into other elements or considered as its separate subatomic particles, but this cannot be done physically to the copper piece.
Is copper made up of more than one element?
Yes, the metallic copper is an element, this means 'of one kind of atoms', it is Cu with atom number 29 in the periodic table. A 'copper' (money piece) is not made of pure copper, it is an alloy, the same like a 'nickel'.
Is coloring a paper a chemical change?
AnswerI would say yes... in some way chemistry is like microcosmical Physics... if a substance absorbes light in a wavelength the eye can detect (ca. 400 nm to 800 nm), this absorbed wavelength can be transformed to its colour in the color-spectrum... so this color is absorbed... that means our eyes see the complementary color to that absorbed color (according to the color-circle of Johannes Itten).I.e. the absorbed color is violet... then our eyes see yellow (the complementary color to violet). Or if green is absorbed... you should see red.If you now have a chemical substance... that suddenly changes color... something about its chemical structure has changed. I would say not the color change is a chemical property, but the color itself that the specific substances have; that is a chemical property (the one of absorption of the complementary color).* * * * *While true, the above is not the whole answer.However, there are some instances where it is a physical property. A film of petrol (gasoline) on water, or the skin of a soap bubble will change colour - not because of any chemical changes - but because of changes in the thickness of the film affect its optical properties. A purely physical change.The heat radiated by objects depends on their temperature. For example a piece of iron can be heated until it glows red but chemically it is not altered.
When zinc metal is placed into a solution of copper sulphate a pinky brown metal is formed but when a piece of silver metal is placed into another solution of copper sulphate no change is observed Why?
Silver is lower in the reactivity series than Zinc and therfore cannot displace the Sulphate from the Zinc. But on the other hand zinc is higher than copper, and when displacing the sulphate from the copper it changes colour due to the reaction. Reactivity series(metals): Potassium Sodium Lithium Calcium Magnesium Aluminium Zinc Iron Tin Lead Copper Silver Gold Platinum
Is a piece of copper is cut in half a physical or chemical change?
Physical change
Is piece of copper is cut in half a physical or a chemical change?
Physical change
Is a piece of metal is bent in half a chemical change?
It is a physical change because only its shape changed, not its chemical composition.
tearing a piece of paper in half physical or chemical change?
Physical change
Is grilling a piece of fish a chemical or physical change?
Chemical.
Is there a chemical change when a piece of copper is put into AgNo3?
no
Is corrosion of a piece of metal chemical or physical change?
chemical change
When a piece of paper burns is it a physical or a chemical change?
Burning is a chemical change.
Is a piece of lumber sawed in half a chemical or physical change?
It is a physical change.
Is cutting a piece of wood a physical change or a chemical change?
Cutting a piece of wood is a physical change because the chemical composition of the wood remains the same before and after cutting. The change is only in the physical appearance and shape of the wood.
Is a piece of mental bent in half a physical or chemical change?
physical
Is a bending a piece of metal in half a physical or chemical change?
Physical
