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Will a metal cup or a styrofoam cup keep the hot water warm after a short time?
A metal cup would likely keep the hot water warmer for a longer period than a styrofoam cup due to its superior insulating properties. Metal is generally a better conductor of heat, so it is able to retain heat better than styrofoam, which is a poor insulator.
Can a styrofoam cup keep hot water hot?
A styrofoam cup can help to retain heat, but it is not as effective as materials like ceramic or insulated metal. Hot water in a styrofoam cup will cool down faster compared to using a better insulated material.
Why is the cold water poured on a hot metal rim?
When cold water is poured on a hot metal rim, it causes rapid cooling due to the temperature difference. This can help shrink the metal and can be used as a method to remove a tight metal cap or rim. The rapid cooling can create stress and contraction on the metal, which may help loosen the grip of the cap or rim.
What is the difference between lead and styrofoam?
Lead is a heavy metal that is dense and toxic when ingested or inhaled, commonly used in construction, batteries, and radiation shielding. Styrofoam, on the other hand, is a lightweight, insulating material made from polystyrene foam and is commonly used in packaging, food containers, and insulation. Lead is harmful to human health, while styrofoam is not biodegradable and poses environmental concerns.
What happen when few drops of sulphuric acid is poured on zinc metal?
When a few drops of sulfuric acid are poured onto zinc metal, a chemical reaction occurs where hydrogen gas is produced and zinc sulfate is formed. This reaction is exothermic and can be quite vigorous, potentially with bubbling and heat evolution. It is important to handle sulfuric acid with care as it is corrosive.
Is metal stronger than styrofoam?
Yes, metal is generally stronger than styrofoam. Metal has higher strength and durability due to its molecular structure, making it more suitable for applications requiring rigidity and load-bearing capacity compared to the lightweight and less sturdy nature of styrofoam.
Where is metal formed and moulded?
A foundry is where metal is melted and poured into molds.
How is molten metal poured into molds to create various shapes and products?
Molten metal is poured into molds through a process called casting. The metal is heated until it becomes liquid, then it is carefully poured into the mold. Once the metal cools and solidifies, the mold is removed to reveal the desired shape or product.
What keeps water hotter paper or styrofoam?
styrofoam, but warning fammable and unsafe for the environment!
Will a metal cup or a styrofoam cup keep the hot water warm after a short time?
A metal cup would likely keep the hot water warmer for a longer period than a styrofoam cup due to its superior insulating properties. Metal is generally a better conductor of heat, so it is able to retain heat better than styrofoam, which is a poor insulator.
Is a Styrofoam cup a lightweight substance?
Styrofoam is indeed lightweight compared to other substances from which cups are made such as clay, metal or glass.
Which has more mass styrafoam or metal?
mass is sort of like the measure of an objects volume, and has no set number per substance, but density is a fixed figure. As to which object is denser, it depends what type of metal you are talking about, but most of the time metal would be more dense. As to how much mass they have, it depends how big the piece of Styrofoam is, and what type and how big the metal is.
What is called a metal that is poured into molds to make bars?
The bar of metal thus formed is called an ingot.
A process in which molten metal is poured into a mold and allowed to harden.?
Casting
Which metal is kept under water?
Sodium is an example of a metal that must be stored under water to prevent it from reacting with air or moisture. Sodium is highly reactive and can ignite spontaneously upon exposure to oxygen. Placing it under water helps to keep it stable.
What metal is melted and poured into molds to make stoarge batteries?
I like boys!
A process in which metal is melted and poured in to molds made of sand or metal or other heat proof materials?
It is called "Casting"
