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Rubber is considered nonpolar. Dipole moments are not possible in rubber due to its molecules' similar charges, and it is not soluble in water.
water can dissolve minerals by its property called "Hydrogen Bonding"
Yes. The density of rubber is 1522 kg per cubic metre, which is greater than that of water (1000 kg per cubic metre)
salt water
Yes.
Yes, rubber is waterproof, which is why early rain gear was cloth that was coated with rubber. It dries out and cracks over time.
water absorbtion, with an intensity depending on the type of rubber; rubber is not soluble in water and don't react with water
Rubber is not porus.
Rubber is generally hydrophobic but some rubber does need to get wet so it does not dry out.
No it will cause rubber to expand.
Rubber bands typically are not damaged by water.
Rubber ducks are full of air, so are buoyant on water.
You can sink rubber completely in water if you want to, but you may need to hold some rubber objects down there. A few forms of rubber have densities less than the density of water, and they float in water if they're not weighted down somehow.
It depends about the rubber and the water.
No, a rubber band is not waterproof. It is made of rubber, which is a material that is permeable to water and can absorb it to some extent.
Rubber is a poor conductor of heat. A suit of rubber can trap water (or air) around the skin and keep that water at the same temperature. This insulates the trapped water (or air) so that the skin feels warm. Rubber is a good insulator.
We use foam rubber to stop condesation of water from the surface of pipe.