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MaxineRockwool is made from natural rock minerals and is considered to be more environmentally friendly. Glass wool, on the other hand, is made from recycled glass bottles and can create airborne dust during installation. Both materials are used as insulation in buildings and have similar thermal and acoustic properties.
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What would you expect to see if the teacher puts a piece of rocksil wool soaked in Meths over a lif bunsin in burner what would you see?
If a piece of rockwool soaked in Meths is placed over a lit Bunsen burner, you would expect to see a blue flame due to the combustion of the Meths. The rockwool would likely catch fire and burn as well.
What happened when you rub an acetate rod with a dump wool?
When you rub an acetate rod with a damp wool, it causes the transfer of electrons from the wool to the acetate rod. This creates an imbalance of charge between the two materials, resulting in the acetate rod becoming negatively charged and the wool becoming positively charged. This process is known as triboelectric charging.
What new substance is produce if moisture and oxygen combined with steel wool?
If moisture and oxygen combine with steel wool, the new substance produced is iron oxide, commonly known as rust. Rust forms on the surface of the steel wool as a result of the oxidation reaction between iron, oxygen, and water.
Is rusting steel wool a physical or chemical change?
Rusting of steel wool is a chemical change because it involves a reaction between iron in the steel wool and oxygen in the air to form iron oxide (rust). This new substance has different properties than the original steel wool.
Why does steel wool corrode from water?
Steel wool is made up of iron, which is prone to corrosion when exposed to water and oxygen. Water provides the necessary electrolytes for the corrosion process, leading to the formation of iron oxide (rust) on the surface of the steel wool. Over time, this corrosion weakens the steel wool and causes it to break down.
