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When a piece of wood burns it makes heat light and ash. what type of change is it?
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What is wrong with using a piece of burning paper to light a Bunsen?
Nothing much. I suppose it is very crude and because paper burns quickly and easily it can be dangerous. Better use a match.
What is the difference between phyical and chemical changes?
A physical change only changes the appearance of an object, it's chemical makeup is still the same. Melting ice doesn't change it to a different object, just a different state. Like if you rip a piece of paper, it's still a piece of paper. But a chemical change changes the makeup of the object. Burning is a chemical change. Once it burns it is no longer paper.
tearing a piece of paper in half physical or chemical change?
Physical change
What does speed change when a ray of light leaves air and enters a piece of glass?
The speed of light slows down ... in general, the denser the material, the lower the speed of light. (For example : air to water to glass.) The maximum speed is in a vacuum.
Is it a chemical reaction when a piece of wood burns?
It is oxidation as the wood combines with air.
When a piece of paper burns is physical change or chemical change?
Cheimical change
When a piece of paper burns is it a physical or a chemical change?
Burning is a chemical change.
What happens to a diamond in a nuclear explosion?
It would probably light up like a piece of coal and burn. Diamond burns quite well.
Can you tell if something is asbestos if it burns easily?
I set light to a piece of plasterboard to see if it was asbestos - but it burned easily so I assume it wasn't.
When a piece of wood burns it releases?
heat
What piece of electrical apparatus is used to change the brightness of a light bulb?
That is called a rheostat or a dimmer.
How do you change a light bulb when the piece it screws into twists with it?
This sounds like a household light socket you are inquiring about, replace the bulb and socket as well.
How do you explain that a piece of sulfur burns and disappear while a piece of iron burns and gained mass?
A piece of sulfur will burn and turn into ash, causing it to lose mass. A piece of of iron that burns will solidify and get heavier the hotter it gets. It gains mass because the make up of iron breaks down and turns into other compounds as it gets heated.
Do diamond accents change color?
Diamonds don't change colour; diamonds reflect a rainbow of colours, depending on the light. Stones that change colour are not diamonds, and if they are used as accents in a piece of diamond jewelery, they simply enhance the charm of the piece.
What is wrong with using a piece of paper to light a Bunsen?
Nothing much. I suppose it is very crude and because paper burns quickly and easily it can be dangerous. Better use a match.
What is wrong with using a piece of burning paper to light a Bunsen?
Nothing much. I suppose it is very crude and because paper burns quickly and easily it can be dangerous. Better use a match.
What causes a meteor to lose it's light and fall?
A meteor is a piece of ice or rock or dust going through the atmosphere which then burns up. It does not have any light of its own. You are just seeing it burn. Once it has burned, then there is nothing left to see.
