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When solid iodine is heated, it undergoes sublimation, transforming directly from a solid to a gas without passing through a liquid phase. This process allows the iodine molecules to bypass the solid-state bonding required to adhere to the fingerprint surface, resulting in a lack of sticking.
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Explain why the solid iodine did not stick to the finger prints but it could when it was heated?
Solid iodine sublimes at room temperature, meaning it goes directly from a solid to a gas without melting. As a result, it does not stick to surfaces like fingerprints because it does not become liquid when in contact with the skin. When heated, the iodine turns into a gas, which can then interact with the oils and sweat in the fingerprint, making it visible.
Why doesn't solid iodine stick to finger prints?
Solid iodine sublimes, meaning it transitions directly from a solid to a gas without becoming a liquid. This property makes it difficult for iodine to leave residue on fingers when touched, which is why it doesn't stick to fingerprints.
Is a glue stick a solid liquid or gas?
A glue stick is a solid. It is a physical state of matter that has a definite shape and volume.
Why does the charcoal powder stick to the fingerprint?
Charcoal powder sticks to the fingerprint due to its absorptive properties. The powder adheres to the natural oils and moisture present in the fingerprint, making the ridges more visible and creating a contrast with the surrounding surface, allowing for easier visualization and analysis.
What is a glue stick solid?
A glue stick is a solid adhesive in stick form that is used for various crafting and school projects. It is made primarily of non-toxic ingredients and is applied by twisting it up and spreading the glue onto surfaces. It dries quickly and provides a strong bond once it sets.
Explain why the solid iodine did not stick to the finger prints but it could when it was heated?
Solid iodine sublimes at room temperature, meaning it goes directly from a solid to a gas without melting. As a result, it does not stick to surfaces like fingerprints because it does not become liquid when in contact with the skin. When heated, the iodine turns into a gas, which can then interact with the oils and sweat in the fingerprint, making it visible.
Why does the solid iodine only stick to fingerprints when its heated?
because the iodine needs to make contact with the fingerprint so when it's a solid it can't do that. However when it is heated it turns in to gas (sublimation) it rises up and as it make contact with a coooler surface (the fingerprint) it crystallizes and makes it visable.
Why does solid iodine only stick to fingerprints when they are heated?
because when they are heated they are sticky and they only fix to fingers
Why doesn't solid iodine stick to finger prints?
Solid iodine sublimes, meaning it transitions directly from a solid to a gas without becoming a liquid. This property makes it difficult for iodine to leave residue on fingers when touched, which is why it doesn't stick to fingerprints.
Why can gas iodine stick to fingerprints?
The gas iodine will stick to the fingerprints because they will crystallize when they come into contact with a cool surface. When heated, iodine directly changes into vapor.
Why does solid iodine not stick to fingerprints?
iodine is a covalent compound and no ionic properties. there are no free electrons on it. so it can not conduct electricity.
Is a glue stick a solid liquid or gas?
A glue stick is a solid. It is a physical state of matter that has a definite shape and volume.
Why is tar heated and not cooled before applied to a roof?
Tar is heated so it can stick to what ever it is going on. If it was cooled it would not stick right.
Is iodine in lady speed stick gel?
No. The active ingredient in Lady Speed Stick gel is Aluminum.
Why does your ferret stick out his tong?
because is over heated
What is stx-al6000 plus Pro lacrosse stick?
it is a solid beginners stick . but the shaft will dent easily.
Why does the charcoal powder stick to the fingerprint?
Charcoal powder sticks to the fingerprint due to its absorptive properties. The powder adheres to the natural oils and moisture present in the fingerprint, making the ridges more visible and creating a contrast with the surrounding surface, allowing for easier visualization and analysis.
