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Is a physical change A. an iron bar rusting B. oil floating on water C. a copper skillet tarnishing D. the sublimation of dry ice?
The answer is D; the sublimation of dry ice. A physical change alters one of the physical properties of a substance (e.g. size, shape, color, etc.), but it does not change the substance itself. A chemical change causes new substances to be formed. The new substances have different chemical properties from the original substance. Changes in the state or phase of matter, such as the sublimation of dry ice (solid carbon dioxide), are physical changes because the chemical compositions of the substances do not change. Sublimation is the change of an object from a solid-state directly to a gaseous state.
Why a bar of the brass is harder than a bar of copper?
Because brass is an alloy of copper & zinc - the zinc atoms change the geometry of the copper crystals - making it less flexible.
When you heat 0.80g of copper carbonate and you weigh it after cooling how come the mass didn't change?
Heating copper carbonate (CuCO3) should result in the generation of copper oxide (CuO) and carbon dioxide gas (CO2). Therefore, the weight (mass) of the material remaining should decrease by an amount equal to the mass of CO2 lost. If the mass didn't change, you didn't heat the copper carbonate sufficiently to cause the decomposition.
What is a change in the position of an object compared to a reference point called?
any change NOT involving a change in the substances chemical identity- type of matter is still the samefor ex. you cold change the texture, volume, shape, mass, size, weight, color, density, or odor.More scientifically, it's a change that doesn't involve altering the chemical makeup of an object.I'll give a few examples.Take a glass window and break it. Now, instead of one pane of glass, you have many small shards of glass- but they're still glass!Take water and freeze it. Ice is simply water in a different phase, it's still molecules of h2o, so chemically it is the same.Take a piece of copper wire and bend it. The physical properties of the wire are now different- it has a bend in it. But it's still copper!An example of a change that's not physical, but chemical, would be rusting iron. When iron rusts it becomes chemically different, a compound called iron oxide (Fe -> FeO).Physical change is a change which takes place without any process of mixing of chemicals. It is a process of change in matter by manual method. If matchstick is burnt the burnt part cannot be regained. This is called chemical change.If the paper is crushed it can be regained to its original shape. this is called physical change.so basically a pyhsical change is any change NOT involving a change in the substances chemical identity- type of matter is still the same
What way can a scientists could really change copper into gold?
You can't. An element is the simplest form that anything can be broken down into.
Copper can be drawn into a thin wire as a physical property or chemical property?
The ability of copper to be drawn into a thin wire is a physical property, as it involves a change in its physical state without altering its chemical composition.
1 Bending a copper wire is an example of what type of property?
It is a physical property. Malleability is a physical property in lots of metals (including copper). It is not a characteristic property, because it is not unique to copper. (Other metals share the same property).
Is it a physical change or a physical property that you observe when you observe the crushing of copper sulfate?
its a physical change call me at 9529753952
Is Copper conducts electricity physical or chemical?
Electrical conductivity is not a change but is a physical property.
Is drawing cooper into wire a chemical change?
No, drawing copper into wire is a physical change because the chemical composition of copper remains the same throughout the process. The transformation involves only a change in shape and size, not in the chemical properties of the copper atoms.
Is the color of a copper wire a physical property or chemical property?
Color is a physical property. However, change in color is a sign of a chemical reaction.
Is copper conducts electricity chemical or physical change?
Copper conducting electricity is a physical change because it involves the movement of electrons within the material, without changing its chemical composition.
Copper metal conducts electricity. physical or chemical change?
Copper metal conducting electricity is a physical property, not a physical or chemical change. Conductivity relates to how electrons move within a material, which does not alter the chemical composition of the copper itself.
Is copper wire a chemical property?
No, copper wire is a physical property of copper. Chemical properties describe how a substance interacts with other substances to form new substances, while physical properties describe the characteristics of a substance without changing its chemical composition.
Is the property of copper a physical or a chemical property explain?
The property of copper being a good conductor of electricity is a physical property because it can be observed without changing the chemical composition of copper. It is a characteristic based on the arrangement of electrons in the copper atoms.
Is the reactivity of copper with oxygen considered a chemical or physical property?
The correct spelling is "reaction of copper with...' 1. Chemical reactivity is a chemical property. 2. A chemical reaction involve a chemical change.
Is copper a physical or chemical change?
its a physical change
