Name the substance that limewater is used to test for. give the full name, not the formula.

Final answer: Limewater is used to test for the presence of carbon dioxide gas. Explanation: Limewater is a solution of calcium hydroxide (Ca(OH)2) in water. It is commonly used in chemistry to test for the presence of carbon dioxide (CO2) gas. When carbon dioxide is bubbled through limewater, it reacts with the calcium hydroxide to form a white precipitate of calcium carbonate (CaCO3). This reaction is commonly used to identify the presence of carbon dioxide gas. Learn more about testing with limewater here: brainly.com/question/5458628 #SPJ14