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How do you prove that glucose do not raise the melting point of stearic acid?
Wiki User
∙ 6y ago
No, impurities do not raise the melting point of Stearic Acid, they decrease it.
All impurities decrease the melting point of solids.
Wiki User
∙ 13y ago
Wiki User
∙ 12y agoNo. Impurities do not raise the melting point of Stearic Acid, the lower it.
All impuritues lower the melting point of acids
Wiki User
∙ 8y agoAny impurity in any material alter the the physical properties, including the melting point.
Wiki User
∙ 6y agoAn experiment is useful.
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How can one show that elements that have different appearances have similar chemical properties?
You can experiement with the melting point, boiling point, and freezing point of the elements to prove they have similar properties. This and you can check the different physical and other chemical properties for similarities and comparison.
What test would you need to perform to prove that it is the combination of glucose and the glucose indicator solution that changes color when heated and not just the glucose or the glucose indicator?
That's actually not that difficult. If one wishes to answer this question in depth, feel free, but all one must do is test them separately. Just put glucose and your indicator (most-likley benedict's solution) in separate beakers, and then heat them both. Nothing will happen to either of them.
What are the steps to prove that a burning of a candle is physical as well as a chemical change?
1. Melting of the candle is a physical change. 2. Burning and thermal decomposition are chemical changes.
What is beeswax is boiling point?
62-65 degrees c
Can all liquids become a solid?
Nope. There are some solids that go directly into the gas phase. Such a process is called sublimation. ans2 No. Some solids chemically decompose when heated. You can't get liquid wood. Some solids turn directly into a gas when heated at standard atmospheric pressure. An example of this is dry ice. I believe that some solids, do not ask me but this is a theory that I can't prove, but some solids have such a high melting point that if heated to its melting point the molicules will become so unstable that the solid would accualy blow up before the period of melting can occur. Although have fun trying to find something on earth that can reach that heat output. One example that comes to mind is diamond. I do not believe diamond has ever melted? Correct me if im wrong.
What has a lower melting point ice or ice cream What experiment can you use to prove this?
it's -0000 degreee calcius
Three test tubes contain substances with approximately the same melting points.How could you prove?
The prove is the determination of these melting points.
How do you prove crystals are pure after re crystallisation?
One of the easier and more reliable ways to check if a solid compound is pure after re-crystallization is to check its melting point. Impurities will always lower the melting point of a sample, and the more impure, the lower the melting point will be. By checking the melting point of your sample with a reference value from a book or reliable internet source, it can be determined exactly how impure the sample is. If perhaps your compound is unknown, and thus are unable to obtain a reference value, you could obtain melting point of the sample, and then re-crystallize a few more times, obtaining a new melting point each time, until it is unchanged by re-crystallizing. This will of course decrease your yield, but if there is little fluctuation in your series of melting points, you can be sure you have a relatively pure sample.
How can one show that element that have different appearances have similar chemical properties?
You can experiement with the melting point, boiling point, and freezing point of the elements to prove they have similar properties. This and you can check the different physical and other chemical properties for similarities and comparison.
How do you prove there is glucose in a sample?
You can prove there is glucose in a sample by using Benedict's Solution. Heat up the sample, and add the Benedict's Solution. Assuming the solution is clear, if glucose is present it will change colour to red, or yellow, or green. If not, it will stay clear.
Three test tubes labeled A B and C contain substances with appromimately the same melting points. How could you prove the test tubes contain three different chemical compounds?
You can label the test tubes with the names or letters like A,B and C. The difference can be seen from looking at the test tubes. However; there are also tests that can help you differentiate between different substance.
Does melting an ice cube prove the conservation of matter?
Yes when it is very hot
How can you prove that two crystalline materials with same melting point are not the same?
By measuring another physical property or making a chemical analysis.
What is a short story told to prove a point?
A parable.
Do you agree that geography is the Queen of the Sciences prove your point?
sure
How does a chocolate melting on your tongue prove energy is needed to change state?
Changing a chocolate from soild to liquid requires the absroption of energy.
Is if one writes logically he will prove his point a correct sentence or unwarranted shift in person?
I'm not sure what the "one" takes on in the sentence of if one writes logically, he will prove his point. Is it third person?
