GCIDE(0.00 / 0 votes)Rate this definition: recuse(v. i.) To withdraw oneself from serving as a judge or other decision-maker in order to avoid a real or apparent conflict of interest; -- often used with the reflexive; as, the judge recused himself due to a financial interest in the matter.
When hydrogen peroxide bubbles, it is undergoing a chemical change. Which statement best describes what is happening? The atoms in hydrogen peroxide are breaking apart and forming new types of molecules. Four students are analyzing four different substances and recording their findings in this table.
It depends on how long the bottle was open (and how old the bottle is in general.) Hydrogen peroxide is a naturally unstable chemical. Over time, it degrades into oxygen gas and water. This reaction is accelerated by high temperature, UV light, and chemical catalysts such as potassium iodide.