How can you identify a material as a solution, a suspension, or a colloid?
Q. Like for example: Italian Salad Dressing What is the material a solution, a suspension or a colloid and why?
Asked by Very Helpful - Mon Oct 19 21:57:15 2009 - - 1 Answers - 0 Comments
Q. Like for example: Italian Salad Dressing What is the material a solution, a suspension or a colloid and why?
Asked by Very Helpful - Mon Oct 19 21:57:15 2009 - - 1 Answers - 0 Comments
If the zeta potential is reduced to zero, the colloid will be unstable right? Why is this?
Q. If the zeta potential is reduced to zero, the colloid will be unstable right? Why is this?
Asked by Bob K - Fri May 2 07:17:43 2008 - - 1 Answers - 0 Comments
A. The zeta potential is a measure of the "repulsiveness" of the colloid particles for each other. The higher the zeta potential, the more they repel each other, and therefore the more stable the colloidal suspension is. If the zeta potential is zero, they don't repel each other, and will therefore aggregate by cohesive forces, and will flocculate, aggregate, and precipitate.
Answered by gribbling - Fri May 2 09:39:17 2008
Q. If the zeta potential is reduced to zero, the colloid will be unstable right? Why is this?
Asked by Bob K - Fri May 2 07:17:43 2008 - - 1 Answers - 0 Comments
A. The zeta potential is a measure of the "repulsiveness" of the colloid particles for each other. The higher the zeta potential, the more they repel each other, and therefore the more stable the colloidal suspension is. If the zeta potential is zero, they don't repel each other, and will therefore aggregate by cohesive forces, and will flocculate, aggregate, and precipitate.
Answered by gribbling - Fri May 2 09:39:17 2008
Has anybody had experience with colloid silver?
Q. ... to treat helicobacter or chlamydia? The amount of antibiotics is too much ... is that true that colloid silver can reach and kill the bacteria better than antibiotics? Thanks a lot for answering me. I am asking here as there are few responses in health category
Asked by goplain - Mon May 12 15:43:42 2008 - - 1 Answers - 0 Comments
A. People that took it for too long developed gray skin. It cannot be reversed. Don't do it.
Answered by Robin W - Mon May 12 15:50:03 2008
Q. ... to treat helicobacter or chlamydia? The amount of antibiotics is too much ... is that true that colloid silver can reach and kill the bacteria better than antibiotics? Thanks a lot for answering me. I am asking here as there are few responses in health category
Asked by goplain - Mon May 12 15:43:42 2008 - - 1 Answers - 0 Comments
A. People that took it for too long developed gray skin. It cannot be reversed. Don't do it.
Answered by Robin W - Mon May 12 15:50:03 2008
What's the difference between a colloid and emulsion?
Q. General gel is a colloid. Solids mixed in water etc.. Correct? Anyway, we made a slime gel using polyvinyl alcohol (Liquid) and a borax solution (Liquid). Does this mean it is emulsion?
Asked by seanus28 - Mon Sep 22 02:11:04 2008 - - 1 Answers - 0 Comments
A. An emulsion is a type of colloidal solution consisting of liquid(dispersed phase) mixed in another liquid(dispersing medium), so the mixture is an emulsion.A gel is a colloid of liquid(dispersed medium) mixed with solids.(eg-butter)
Answered by Aayush - Mon Sep 22 03:21:15 2008
Q. General gel is a colloid. Solids mixed in water etc.. Correct? Anyway, we made a slime gel using polyvinyl alcohol (Liquid) and a borax solution (Liquid). Does this mean it is emulsion?
Asked by seanus28 - Mon Sep 22 02:11:04 2008 - - 1 Answers - 0 Comments
A. An emulsion is a type of colloidal solution consisting of liquid(dispersed phase) mixed in another liquid(dispersing medium), so the mixture is an emulsion.A gel is a colloid of liquid(dispersed medium) mixed with solids.(eg-butter)
Answered by Aayush - Mon Sep 22 03:21:15 2008
What is a technetium sulfa colloid scan? Can I have one with sulfa allergies?
Q. Several months ago, doctors found three large masses in my liver. One is 1 inch by 1 inch. Another is 1.5 inches by 1.5 inches. The big one is 3 by 4 inches. I've had two MRIs and a CTscan. Now they are trying to determine whether they are adenomas or hyperplasia, so I am going to have two procedures. A technetium HIDA scan and a technetium sulfa colloid scan. Does anyone know how these procedures generally go? (ie - What's the process?) Also, if I'm allergic to Sulfa drugs, can I have the Sulfa scan? I have doctors working on this, but I thought I might be able to get some perspective on what to expect from the scans. Also, if they're ademonas, what can I expect from that? Will they need to be removed? Thanks in advance!
Asked by inkynyc - Fri Oct 6 15:55:16 2006 - - 1 Answers - 0 Comments
A. These two sites will might be able to help you. Both have wonderful & informative information. They were a huge help for me. I hope this helps you. Good Luck!
Answered by //////////////// - Thu Oct 12 14:09:50 2006
Q. Several months ago, doctors found three large masses in my liver. One is 1 inch by 1 inch. Another is 1.5 inches by 1.5 inches. The big one is 3 by 4 inches. I've had two MRIs and a CTscan. Now they are trying to determine whether they are adenomas or hyperplasia, so I am going to have two procedures. A technetium HIDA scan and a technetium sulfa colloid scan. Does anyone know how these procedures generally go? (ie - What's the process?) Also, if I'm allergic to Sulfa drugs, can I have the Sulfa scan? I have doctors working on this, but I thought I might be able to get some perspective on what to expect from the scans. Also, if they're ademonas, what can I expect from that? Will they need to be removed? Thanks in advance!
Asked by inkynyc - Fri Oct 6 15:55:16 2006 - - 1 Answers - 0 Comments
A. These two sites will might be able to help you. Both have wonderful & informative information. They were a huge help for me. I hope this helps you. Good Luck!
Answered by //////////////// - Thu Oct 12 14:09:50 2006
Is food coloring a solution or a colloid, and what kind of a substance is soap?
Q. Also, why would food coloring dropped into milk eventually mix with the milk on its own (and why does the fact that milk is a colloid slow down this mixing process)?
Asked by Chip - Mon Jan 29 20:51:50 2007 - - 1 Answers - 0 Comments
A. Food colorings are various dye molecules dissolved in water or ethanol. So, they are ususally supplied as solutions, though sometimes the dry dyes are used in the food industry. Soap is the product of "saponification", in which fats are cooked with sodium or potassium hydroxide (aka "lye"). Chemically, the soap molecule is the sodium or potassium salt of a "fatty acid". Soaps made with potassium hydroxide are transparent and/or liquid; soaps made with sodium hydroxide are the hard white variety. Both these substances are "surfactants", short for "surface-active agents", which also includes detergents, which are different from soaps chemically. As to the food coloring in milk question, molecules of any kind mixing on their own in a fluid… [cont.]
Answered by Glenguin - Tue Jan 30 09:31:17 2007
Q. Also, why would food coloring dropped into milk eventually mix with the milk on its own (and why does the fact that milk is a colloid slow down this mixing process)?
Asked by Chip - Mon Jan 29 20:51:50 2007 - - 1 Answers - 0 Comments
A. Food colorings are various dye molecules dissolved in water or ethanol. So, they are ususally supplied as solutions, though sometimes the dry dyes are used in the food industry. Soap is the product of "saponification", in which fats are cooked with sodium or potassium hydroxide (aka "lye"). Chemically, the soap molecule is the sodium or potassium salt of a "fatty acid". Soaps made with potassium hydroxide are transparent and/or liquid; soaps made with sodium hydroxide are the hard white variety. Both these substances are "surfactants", short for "surface-active agents", which also includes detergents, which are different from soaps chemically. As to the food coloring in milk question, molecules of any kind mixing on their own in a fluid… [cont.]
Answered by Glenguin - Tue Jan 30 09:31:17 2007
What type of colloid is formed when a gas is dispersed in a liquid?
Q. (Note: We did not cover this specifically in class, but it should be an easy question to discover the answer for from the text book.) sol gel emulsion aerosol foam
Asked by Salem A - Sun Feb 15 17:21:26 2009 - - 1 Answers - 0 Comments
A. It's a foam. A sol is a dispersion of a solid in a liquid. An emulsion is a dispersion of one liquid in another. An aerosol is a dispersion of solid particles in a gas. A gel is a dilute system of extensively cross-linked polymers which has physical properties intermediate between a solid and a liquid.
Answered by Steve S - Sun Feb 15 17:27:27 2009
Q. (Note: We did not cover this specifically in class, but it should be an easy question to discover the answer for from the text book.) sol gel emulsion aerosol foam
Asked by Salem A - Sun Feb 15 17:21:26 2009 - - 1 Answers - 0 Comments
A. It's a foam. A sol is a dispersion of a solid in a liquid. An emulsion is a dispersion of one liquid in another. An aerosol is a dispersion of solid particles in a gas. A gel is a dilute system of extensively cross-linked polymers which has physical properties intermediate between a solid and a liquid.
Answered by Steve S - Sun Feb 15 17:27:27 2009
Describe a colloid and state the difference between it and a suspension. Give one example of a colloid.?
Q. help please! I looked it up, but it confused me. If someone could explain it instead of just telling me the answer, that would be great!
Asked by I HarryPotter/Twilight/MyBffJenn - Sat Jan 12 01:49:47 2008 - - 1 Answers - 0 Comments
A. Colloids are particles larger than those found in a solution but smaller than those in a suspension. The basic difference between a colloid and a suspension is the diamater of the particles dispersed. Colloids are generally 1 to 5 nanometers while suspensions are usually 1000 nanometers. Colloids are usually harder to detect / see with the naked eye or microscope for this reason. Whipped cream is one of my favorite examples of a colloid. Also gelatin, butter, smoke, and fog are examples. Dust in air is an example of a suspension. Hope this helps a tad : )!
Answered by tofergo - Sat Jan 12 02:07:19 2008
Q. help please! I looked it up, but it confused me. If someone could explain it instead of just telling me the answer, that would be great!
Asked by I HarryPotter/Twilight/MyBffJenn - Sat Jan 12 01:49:47 2008 - - 1 Answers - 0 Comments
A. Colloids are particles larger than those found in a solution but smaller than those in a suspension. The basic difference between a colloid and a suspension is the diamater of the particles dispersed. Colloids are generally 1 to 5 nanometers while suspensions are usually 1000 nanometers. Colloids are usually harder to detect / see with the naked eye or microscope for this reason. Whipped cream is one of my favorite examples of a colloid. Also gelatin, butter, smoke, and fog are examples. Dust in air is an example of a suspension. Hope this helps a tad : )!
Answered by tofergo - Sat Jan 12 02:07:19 2008
How does a colloid differ from a pure solution in regards to settling out components?
Q. How does a colloid differ from a pure solution in regards to settling out components?
Asked by kraminofski - Fri Jan 2 19:51:10 2009 - - 2 Answers - 0 Comments
A. A colloid is self suspended. Think of Jell-o. A pure solution is a solution where you don't see the separation. Think of sugar in hot water.
Answered by Johann G - Fri Jan 2 19:56:59 2009
Q. How does a colloid differ from a pure solution in regards to settling out components?
Asked by kraminofski - Fri Jan 2 19:51:10 2009 - - 2 Answers - 0 Comments
A. A colloid is self suspended. Think of Jell-o. A pure solution is a solution where you don't see the separation. Think of sugar in hot water.
Answered by Johann G - Fri Jan 2 19:56:59 2009
How to mix small quantity of water with petrol inseparably like a colloid?
Q. How to mix small quantity of water with petrol inseparably like a colloid?
Asked by akumalla - Tue Aug 12 09:16:36 2008 - - 1 Answers - 0 Comments
A. Use an emulsifying agent. Lecithin comes to mind, but that's used in making mayonnaise.
Answered by ThatGuy - Tue Aug 12 09:23:40 2008
Q. How to mix small quantity of water with petrol inseparably like a colloid?
Asked by akumalla - Tue Aug 12 09:16:36 2008 - - 1 Answers - 0 Comments
A. Use an emulsifying agent. Lecithin comes to mind, but that's used in making mayonnaise.
Answered by ThatGuy - Tue Aug 12 09:23:40 2008
Does anyone know examples of a colloid or suspension in chemistry?
Q. It has to do with chemistry, not cars.
Asked by pleasehelp - Tue Apr 4 20:09:33 2006 - - 3 Answers - 0 Comments
A. colloid = any system involving two phases where one phase is dispersed in another... the dispersed phase is usually less than 1micrometre in particle size...eg... mayyonaise is an oil/water suspension; photographic film is a colloidal suspension of silver halide
Answered by kreen - Tue Apr 4 20:37:36 2006
Q. It has to do with chemistry, not cars.
Asked by pleasehelp - Tue Apr 4 20:09:33 2006 - - 3 Answers - 0 Comments
A. colloid = any system involving two phases where one phase is dispersed in another... the dispersed phase is usually less than 1micrometre in particle size...eg... mayyonaise is an oil/water suspension; photographic film is a colloidal suspension of silver halide
Answered by kreen - Tue Apr 4 20:37:36 2006
How do I identify the following as characteristics of a solution, colloid, or suspension?
Q. a.) Particles of this mixture remain inside a semipermiable membrane, but pass through filters b.) The particles of a solute in this mixture are very large and visible
Asked by joshb - Mon Dec 15 00:58:17 2008 - - 1 Answers - 0 Comments
A. Well, I know that in solutions, the two or more substances are so uniformly mixed that it's difficult to get them separated, like salt water. Um, suspensions are easily indentifiable (sp?). You can visually see the two substances separately within the mixture... think of a snow globe. It's like that. You can Identify the water and the glitter as two separate things. As for colloids, I really don't know. Sorry
Answered by Apex0913 - Mon Dec 15 01:03:32 2008
Q. a.) Particles of this mixture remain inside a semipermiable membrane, but pass through filters b.) The particles of a solute in this mixture are very large and visible
Asked by joshb - Mon Dec 15 00:58:17 2008 - - 1 Answers - 0 Comments
A. Well, I know that in solutions, the two or more substances are so uniformly mixed that it's difficult to get them separated, like salt water. Um, suspensions are easily indentifiable (sp?). You can visually see the two substances separately within the mixture... think of a snow globe. It's like that. You can Identify the water and the glitter as two separate things. As for colloids, I really don't know. Sorry
Answered by Apex0913 - Mon Dec 15 01:03:32 2008
What is the difference between a suspension and a colloid. What's an example of each?
Q. I need to know this for a science class
Asked by tatersalad - Wed Apr 5 11:26:43 2006 - - 2 Answers - 0 Comments
A. a suspension is a liquid and a solid in which the solid is in suspension in the liquid. a good example is something like dirt and water. the dirt is a solid and it is suspended in the water. a colloid is a misture of two liquids. an example is water and alcohol. the alcohol is slightly soluble in water and so they make a colloid.
Answered by chiclovr45479 - Wed Apr 5 11:49:09 2006
Q. I need to know this for a science class
Asked by tatersalad - Wed Apr 5 11:26:43 2006 - - 2 Answers - 0 Comments
A. a suspension is a liquid and a solid in which the solid is in suspension in the liquid. a good example is something like dirt and water. the dirt is a solid and it is suspended in the water. a colloid is a misture of two liquids. an example is water and alcohol. the alcohol is slightly soluble in water and so they make a colloid.
Answered by chiclovr45479 - Wed Apr 5 11:49:09 2006
How does a colloid differ from a pure substance in regards to separation through a semi-permeable membrane?
Q. How does a colloid differ from a pure substance in regards to separation through a semi-permeable membrane?
Asked by kraminofski - Fri Jan 2 20:12:56 2009 - - 1 Answers - 0 Comments
A. They are particles that are generally too large to pass through a semi-permeable membrane. Some pure substances which could mean dissolved substances don't pass through some membranes either. There is no effect from osmosis. Maybe that is what they were looking for.
Answered by bravozulu - Fri Jan 2 20:21:55 2009
Q. How does a colloid differ from a pure substance in regards to separation through a semi-permeable membrane?
Asked by kraminofski - Fri Jan 2 20:12:56 2009 - - 1 Answers - 0 Comments
A. They are particles that are generally too large to pass through a semi-permeable membrane. Some pure substances which could mean dissolved substances don't pass through some membranes either. There is no effect from osmosis. Maybe that is what they were looking for.
Answered by bravozulu - Fri Jan 2 20:21:55 2009
What can the particles in both a solution and a colloid can do?
Q. solution particles and colloid particles can both
Asked by Katelyn Celmer - Fri Jan 18 14:16:54 2008 - - 1 Answers - 0 Comments
A. not sure what you after... they both scatter light
Answered by ferrous lad - Fri Jan 18 14:55:50 2008
Q. solution particles and colloid particles can both
Asked by Katelyn Celmer - Fri Jan 18 14:16:54 2008 - - 1 Answers - 0 Comments
A. not sure what you after... they both scatter light
Answered by ferrous lad - Fri Jan 18 14:55:50 2008
Is Lemonade a colloid, solution, suspension, or just plain mixture?
Q. I know what the water is made of but what about the sugar and lemon? What are they made of?
Asked by G G - Sun Nov 25 17:26:58 2007 - - 2 Answers - 0 Comments
A. Lemonade is a solution.
Answered by Dr. K - Sun Nov 25 17:36:35 2007
Q. I know what the water is made of but what about the sugar and lemon? What are they made of?
Asked by G G - Sun Nov 25 17:26:58 2007 - - 2 Answers - 0 Comments
A. Lemonade is a solution.
Answered by Dr. K - Sun Nov 25 17:36:35 2007
Is there anything that will shrink a benign colloid thyroid nodule?
Q. Is there anything that will shrink a benign colloid thyroid nodule?
Asked by infiniti - Tue Apr 21 17:46:44 2009 - - 1 Answers - 0 Comments
A. I don't know but be very careful. They didn't think I had thyroid cancer until they took my thyroid out and sent it off. They did a biopsy on it that was negative, I had a false negative. You should see an endocrinologist.
Answered by blt830 - Tue Apr 21 17:52:23 2009
Q. Is there anything that will shrink a benign colloid thyroid nodule?
Asked by infiniti - Tue Apr 21 17:46:44 2009 - - 1 Answers - 0 Comments
A. I don't know but be very careful. They didn't think I had thyroid cancer until they took my thyroid out and sent it off. They did a biopsy on it that was negative, I had a false negative. You should see an endocrinologist.
Answered by blt830 - Tue Apr 21 17:52:23 2009
What is the difference between a suspension and a colloid? Can you give me two examples of each?
Q. What is the difference between a suspension and a colloid? Can you give me two examples of each?
Asked by phil - Tue Apr 4 13:57:01 2006 - - 3 Answers - 0 Comments
A. In my 'layman' understanding, particles are called colloids because they are just small enough to be in suspension; not too heavy to fall out of suspension. I take colloidal quartz, i.e. silica, to strengthen my bones, connective tissue, hair and nails. I believe it is made the same way colloidal silver is made, by electrically charging a larger mass of the substance placed in water - in the case of silica, a quartz rock - so that it sheds off small enough particles of itself into the water which equally distribute in suspension with the water molecules.
Answered by bluelairess - Tue Apr 4 14:06:21 2006
Q. What is the difference between a suspension and a colloid? Can you give me two examples of each?
Asked by phil - Tue Apr 4 13:57:01 2006 - - 3 Answers - 0 Comments
A. In my 'layman' understanding, particles are called colloids because they are just small enough to be in suspension; not too heavy to fall out of suspension. I take colloidal quartz, i.e. silica, to strengthen my bones, connective tissue, hair and nails. I believe it is made the same way colloidal silver is made, by electrically charging a larger mass of the substance placed in water - in the case of silica, a quartz rock - so that it sheds off small enough particles of itself into the water which equally distribute in suspension with the water molecules.
Answered by bluelairess - Tue Apr 4 14:06:21 2006
What determines whether a mixture is a solution, colloid, or a suspension?
Q. What determines whether a mixture is a solution, colloid, or a suspension?
Asked by evie - Mon Feb 11 19:59:28 2008 - - 1 Answers - 0 Comments
A. solution = ions in a liquid colloid = liquid in a liquid suspension = solid in a liquid
Answered by Ralph - Mon Feb 11 20:05:08 2008
Q. What determines whether a mixture is a solution, colloid, or a suspension?
Asked by evie - Mon Feb 11 19:59:28 2008 - - 1 Answers - 0 Comments
A. solution = ions in a liquid colloid = liquid in a liquid suspension = solid in a liquid
Answered by Ralph - Mon Feb 11 20:05:08 2008
Why does SnO2 form a positively charged colloid in acidic medium,
Q. but a negatively charged colloid in a basic medium?
Asked by Malfoy vs Potter - Fri Aug 8 07:29:22 2008 - - 1 Answers - 0 Comments
A. In acidic media, the surface O lone pairs bind to hydrogen ions. In basic media, OH- groups attach themselves to the particles. I do not know if it is known whether this is by direct coordination to Sn, by deprotonation of surface OH-, or by hydrogen bonding to surface oxide. This is part of a very general phenomenon found with metal oxides and hydroxides. There is one specific pH, the isoelectric point, where the particles are neutral. This pH varies from one substance to another.
Answered by Paul B - Fri Aug 8 07:40:11 2008
Q. but a negatively charged colloid in a basic medium?
Asked by Malfoy vs Potter - Fri Aug 8 07:29:22 2008 - - 1 Answers - 0 Comments
A. In acidic media, the surface O lone pairs bind to hydrogen ions. In basic media, OH- groups attach themselves to the particles. I do not know if it is known whether this is by direct coordination to Sn, by deprotonation of surface OH-, or by hydrogen bonding to surface oxide. This is part of a very general phenomenon found with metal oxides and hydroxides. There is one specific pH, the isoelectric point, where the particles are neutral. This pH varies from one substance to another.
Answered by Paul B - Fri Aug 8 07:40:11 2008
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