A base.
Stain removers are often reasonably powerful acids or bases. If an acid, it will simply eat away at the spider, killing it. If a base, it will damage the spider's nerves. Either way, a spider would die.
Laundry detergent is typically a base because it contains surfactants that help to lift dirt and oils from fabrics by increasing the pH of the water, making it more alkaline.
It is because turmeric contains an acid (tartaric acid), while the soap contains a base (sodium hydroxide). When an acid reacts with a base, neutralization reaction takes place and the stain becomes neutral.
Nail varnish remover is an acid, which is why it is such a harsh substance, although due to health and safety regulations it is a very weak acidic substance. If it was strong then it would course irritation to the skin.
It is a base because it has a pH level of 7.8 and for it to be ans acid it has to be below 7 for a pH level to be an acid.
Powdered laundry detergent is typically basic in nature. It contains alkaline substances such as sodium carbonate or sodium silicate to help remove grease and oils from clothes.
Hair removers are typically alkaline in nature, so they can be considered a base. The alkaline properties help to break down the disulfide bonds in the hair proteins, making it easier to remove the hair.
All of it. Otherwise the latex stain will seal the surface of the wood and the oil will not be able to penetrate into the wood. Sanding won't remove all of the residue. You'll want to use a paint stripper/stain remover too.
It is because turmeric contains an acid (tartaric acid), while the soap contains a base (sodium hydroxide). When an acid reacts with a base, neutralization reaction takes place and the stain becomes neutral.
Yes, lye can be used to remove stains from laundry by creating a paste with water and applying it directly to the stain. However, lye is a strong base and can be caustic, so it should be handled carefully and rinsed thoroughly from fabrics to avoid damage. It is recommended to test on a small, inconspicuous area first before using it on the entire stain.
It depends on the stain. If it is a water base stain then no. If it is a oil or solvent base it should be fine.
A stain? Could be a salt: an ionic compound formed from the reaction between an acid and a base.