Open QuestionIf two substances are mixed and a new substance is formed, what type of change is it?693views
Open QuestionWhich of the following summarizes a change that takes place as a solid turns to a liquid?836views
Open QuestionWhen the color, smell, and taste of the mixture changed, I knew a chemical ___ had taken place.927views
Open QuestionCiara's bike has rusted, which means that the iron in the metal changed to rust. What has occurred?914views
Open QuestionWhat is the process that changes one set of chemicals into another set of chemicals?824views