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Sanding rust off of a metal is a physical change. You are changing the rust's location, but not its chemical structure.
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∙ 12y ago
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Are a frozen pipe or a rusted metal bike a chemical energy?
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.
Which type of change is a rusting bicycle physical or chemical?
The steel of your bike contains iron, which becomes iron oxide [which is rust]. It has reacted with oxygen in the air. Water in the air makes this happen more easily which is why you should keep your bike dry, or at least keep your bike painted well so that the iron/steel doesn't come in contact with air. The iron and oxygen were separate at the beginning, and are bonded together into a new substance at the end, so that tells us that this is a chemical change. A physical change is one where no new substance is made, but the substances we already had get reorganised. For example. when water boils, the steam is still the same molecule, water, just reorganised.
What physical properties are important for the materials used to make mountain bikes?
I think the wheels and the seat of the bike. Improved by Jamie Buchinsky: This answer is wrong. physical properties are colour, smell, maluability, ductility, etc.
Which faster pw80 or kx65?
A kx65 is a race bike for skilled riders and has a powerband. it tops out at 65mph stock thats why its a racebike. Although a two stroke a pw80 has no powerband and is a begginers bike. PW stands for pee wee. It tops out at about 40 to 45. It is more of a trail bike for beginners bike. Hope this helped.
What is a bike chain made out of?
Metal,
Is rusting wheels of a bike chemical or physical?
Rusting is a chemical change.
Is a rusting bicycle a physical or chemical change?
It's not the rusty bike it's the rusting of the bike. rust forms in a process called oxidation, or when iron comes in contact with oxygen. Also one reason you can tell it's a chemical change is when you can't reverse the process. Or when it involves changing the chemical compound.
Is leaving your bike in the rain chemical or physical?
Chemical
Is a bike rusting in the rain chemical change?
The clouds are the gas form of water. The chemical change is from gas to liquid when it rains.
Are a frozen pipe or a rusted metal bike a chemical energy?
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.
What are phisycal changes in matter?
Physical changes are changes that only change the appearance of an object, but not the type of matter. For example, if a metal bike rusts the bike will still remain a solid. That is a physical change.
Can you sand a bike by hand?
You need to get sand.Put a bunch in your hand and start sanding.
Can a bicycle frame undergo a physical change?
Yes, bicycle frames can undergo physical change. When metal bike frames get warm, the expand a little bit. It's not much, but they do, and this change is a physical one. All bike frames warm up just a little bit when we ride them. The frames flex just a tiny bit when we apply the stress of riding to them, and they will respond to the flexing by warning up, and the increases in temperature will cause the material to expand just a little bit. In metal frames, the metallic properties of the material from which the frame is made will undergo changes. Metals that flex or move while in use undergo what is called work hardening. The metallic crystal structure changes and smaller crystals form out of larger ones, and the metal becomes brittle. This is just one form of physical change that a bike frame can undergo.A physical change of a bike from would be if it is bent or cut.
Which type of change is a rusting bicycle physical or chemical?
The steel of your bike contains iron, which becomes iron oxide [which is rust]. It has reacted with oxygen in the air. Water in the air makes this happen more easily which is why you should keep your bike dry, or at least keep your bike painted well so that the iron/steel doesn't come in contact with air. The iron and oxygen were separate at the beginning, and are bonded together into a new substance at the end, so that tells us that this is a chemical change. A physical change is one where no new substance is made, but the substances we already had get reorganised. For example. when water boils, the steam is still the same molecule, water, just reorganised.
What is a chemical change for a bicycle frame?
Yes, because corrosion takes place in the process.
What chemical change is there when a rust spot forms on a bike fender were some paint came off?
Oxidation
What is a chemical change?
A chemical change is a change in which a substance turns into a completely different substance that can't be reversed. A chemical change often happens when a substance burns (not to be confused with evaporation or melting of a substance), changes colors, a substance spoils or rusts, photosynthesis or respiration, and/or a substance tarnishes.Some examples are a bike rusting, burning bread to make toast, fireworks exploding, milk spoiling, a leaf changing color, mixing eggs and flour for a batter, baking a cake, etc.A chemical change will NOT dissolve, go through a state of matter (sublimation, decomposition, melting, freezing, evaporation, and condensation), breaking or tearing of a substance, and/or anything that can be reversed back.A chemical change is one in which one or more new substances are formed. Simple examples include burning and rusting.
