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In general paper starts out as white, or near white; definitely a light color. As paper ages, it begins to oxidize; the same process as rust. So, the older the paper, the more it has discolored. There are other factors involved, like how often the paper has been handled, whether it has been protected by being inside or exposed to sunlight, smoke, chemical fumes, etc. When all of these factors are taken into account, you can probably make a good guess as to how old the paper is.
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Why does color paper fade in direct sunlight?
It's because the sunlight decolor the colored paper. The sunlight makes the color of paper to another color.
How much is a old us paper food stamp worth?
I have an old paper food stamp and i was wanting to know what it would be worth now. It's a 1999 $1.00 paper stamp. It's in great shape.
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how does water attect the color of thepH paper
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How are we to know that the color I call red, is in all actuality the color you call red? Maybe my white is your red, and your white is my red. How do we know?!
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Filter paper is white.
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Litmus paper: red color in acidic solutions and blue color in basic solutions.Phenolphthalein: no color in acidic solutions.
Can water affect the color of the pH paper?
i don't know that's why i asked you ... no, because pH paper only detects Acids and Alkali substances, water has a pH of 7 because it is neutral, but has no affect on pH paper :)
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What color does red litmus paper turn to rom acid?
The color of litmus paper in acidic solutions is red.
