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What else can I help you with?
What physical changes can you make to a substance to determine if it's an element?
You can subject the substance to a range of physical changes, such as heating it to see if it melts or boils at characteristic temperatures, or conducting electricity through it to test its conductivity. Additionally, you can perform chemical tests like reacting the substance with other elements or compounds to observe its behavior.
Why is a melting point often referred to as a range and not an exact number?
A melting point is often given as a range because impurities, uneven heating, and other factors can cause the substance to melt over a range of temperatures rather than at a single, precise temperature. The range indicates that the substance begins to melt at the lower end and is completely melted at the upper end of the range.
How can you use a Mel-temp to check the purity of the aspirin?
A mel-temp is a very accurate way to measure the melting range of a substance. A pure substance will have a very narrow melting range, while an impure substance will have a wider melting range. Melting range begins at the temperature where the substance begins to melt, and it ends when the substance is a liquid. There are known values of the melting range of each substance available online. An adulterant will usually raise or lower this number Pure aspirin melts at 135 degrees C
Which compound melts over a range of temperature?
compound
How does temperature affect butter and margin?
Temperature affects butter and margarine in terms of their texture and consistency. Butter solidifies at cooler temperatures and softens or melts at warmer temperatures, whereas margarine tends to maintain a more consistent texture across a wider range of temperatures. Extreme temperatures can cause butter to become too hard or too soft, affecting its performance in recipes, while margarine is more stable in these conditions.
Waxy material that melts gradually starting at 52 Celsius and finishes at 65 is it a pure substance mixture?
The waxy material described is a pure substance. It exhibits a melting point range, suggesting a specific compound with a defined melting temperature range, rather than a mixture of multiple substances with varying melting points.
Is there any substance whose elasticity is independet of temperature?
Yes, rubber is an example of a substance whose elasticity is relatively independent of temperature. This is due to its unique molecular structure, which allows it to maintain its elasticity over a wide range of temperatures.
When an obtained melting point range is broad what does it tell about the substance?
strong intermolecular forces attract the molecules
What is the temperature range for magma?
Magma is a complex high-temperature fluid substance. Temperatures of most magmas are in the range 700 °C to 1300 °C (or 1300 °F to 2400 °F), but very rare carbonatite melts may be as cool as 600 °C, and komatiite melts may have been as hot as 1600 °C. Most are silicate mixturess.
What is an object called that melts under high voltage to protect circuits?
A device that melts under high current , not high voltage is a circuit protective fuse. There are many fuses that are rated for voltages in the 10,000 volt range. It is the over current that trips them.
What do you mean a range of a thermometer?
The range of a thermometer refers to the range of temperatures it can measure accurately. For example, a thermometer with a range of -20°C to 100°C can accurately measure temperatures within that range, but may not be accurate outside of it.
The change of state from a liquid to a gas that usually occurs at the surface of a liquid over a wide range of temperatures.?
This phenomenon is called evaporation.
