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How can substances be separated?
gas-liquid, paper, or column chromatography are some examples
Why do metal oxides turn red litmus blue?
because litmus paper is smeared of some chemical substances which makes litmus paper to change color when reacted with acids or bases
Why doesn't water have any effect on litmus paper?
Some substances do not change the color of litmus paper because they are neither acid or nor base. They are called neutral substances.
Is a book a substance or a solid?
A book is made of more different substances, most of which are solid: paper, linen, carton. The printing ink is (was) a liquid with some solid particles in it.
What are some substances separated by centrifuge?
milk , separating colloids and organic substances
How can substances be separated?
gas-liquid, paper, or column chromatography are some examples
Why does different colour dyes move different speeds up charmatograhy paper?
What is charmatograhy paper? Just kidding! I assume you mean chromatography paper. Well, the answer to your question lies in the solubility of the different colour dyes. The more soluble the dye the faster it will travel across the paper. Also, some substances react better with the paper but I'm not sure that is the right answer.
What are some highly flamable substances?
Gasoline, paper, wood, ethanol, propane, etc.
Is it fair to distribute fundraising money unequally to amateur athletes for travel expenses?
Yes - some may have further to travel.
Could your drum be adjusted to make the sound waves go further?
Yes. Some sound frequencies travel further than others.
Why do metal oxides turn red litmus blue?
because litmus paper is smeared of some chemical substances which makes litmus paper to change color when reacted with acids or bases
Why doesn't water have any effect on litmus paper?
Some substances do not change the color of litmus paper because they are neither acid or nor base. They are called neutral substances.
In chromatography how are the sunstances carried up the paper?
The solvent rises up the chromatography paper (blotting paper) by capillarity. When the solvent reaches the "spot" it dissolves the mixture of coloured chemicals. There is now a solution; this is a mixture of solutes dissolved in the solvent. The molecules of these different chemicals are all different sizes. The simple explanation is that the smallest solute molecules travel almost as quickly as the solvent molecules and so get carried to the top of the chromatogram. The largest solute molecules travel very slowly and stay near the bottom. So some of the coloured chemical travel further than others.
Is paper an element?
No, paper is not an element. Paper is a material made from cellulose fibers derived from wood, cloth, or grasses. Elements are pure substances that cannot be broken down into simpler substances by chemical reactions.
What are some examples of insoluble substances?
Sand , paper, oil, baby oil, rocks, gold, dog fur, bricks and/or anything that is in capable of being dissolved
What is paper chromatography?
Paper chromatography is a technique used to separate a mixture into its component molecules. The molecules migrate, or move up the paper, at different rates because of differences in solubility, molecular mass, and hydrogen bonding with the paper.
Is waxed paper opaque translucent or transparent?
Wax paper is translucent as it allows some light through. Transparent refers to a substance allowing practically all light through, whereas opaque substances let no light through.
