Open QuestionIf two substances are mixed and a new substance is formed, what type of change is it?447views
Open QuestionWhich of the following summarizes a change that takes place as a solid turns to a liquid?465views
Open QuestionWhen the color, smell, and taste of the mixture changed, I knew a chemical ___ had taken place.487views
Open QuestionCiara's bike has rusted, which means that the iron in the metal changed to rust. What has occurred?530views
Open QuestionWhat is the process that changes one set of chemicals into another set of chemicals?544views