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A frozen pipe is a physical change, as it is just water changing state from liquid to solid (ice).
However, a rusted metal bike is a chemical reaction as it is caused by the metal reacting with the oxygen in the air, in what is called an oxidation reaction.
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What chemical change is likely to occur when a metal chair is left outside in the air and rain?
The metal chair is rusted.
Is forming an oxide a chemical change?
Yes. A metal and an oxidised metal are two very different substances. Iron -> Iron oxide. The only change I that the iron has rusted because it REACTS with oxygen
How is a rusting pipe a chemical change?
Rust is a chemical change because it takes the Iron(or whatever metal) the bridge is made of and reacts with water and the atmosphere and created a new compound H2OFe which is also known as rust.
Which action in the science lab transforms chemical energy to heat energy?
Burning a candle or causing oxidation of a chemical. You can also create heat by placing sodium metal in water (caution, this is dangerous).
Why is ionization energy important when discussing metal behavior in a chemical reaction?
Because it jumps from atoms to make a neutral atom which is pretty much why we have chemical reactions.
What chemical change is likely to occur when a metal chair is left outside in the air and rain?
The metal chair is rusted.
Can fiberglass be used to repair rusted metal?
Yes but with poor results. How about cutting the rusted metal out and replacing it?
How do you use chemical energy?
you use chemical energy by cooking an egg, burning wood, water on wood/metal
Is forming an oxide a chemical change?
Yes. A metal and an oxidised metal are two very different substances. Iron -> Iron oxide. The only change I that the iron has rusted because it REACTS with oxygen
Does rusted metal attract a magnet the same as normal metal?
yes
Can rusted metal hurt a dog?
yes
What allows metal to bond?
Overlapping outer energy levels.
What produces chemical energy?
Basically Chemical Energy is stored up in the bonds. Chemical energy is usually converted to another form sucha sheat and light. Burning magnesium produces haet and light. The chemical energy is stored in the metal and the oxygen. It has a scientific name of chemical potential.
Is rusted a verb?
Yes, it is a form of the verb "to rust" (oxidize, crumble). It is the past tense and past participle,and can be used as an adjective (rusted metal).
How is a rusting pipe a chemical change?
Rust is a chemical change because it takes the Iron(or whatever metal) the bridge is made of and reacts with water and the atmosphere and created a new compound H2OFe which is also known as rust.
Which energy converts to which energy in electrolysis?
In electrolysis Electrical energy is used for changing thestate of Chemical / Metal structure. Usually during this process heat energy is released as by product.
Is rust used for anything?
Yes. Even if the metal were completely rusted, it would still be considered a very high-grade ore as it's entirely metal oxide.
