Open QuestionIf two substances are mixed and a new substance is formed, what type of change is it?450views
Open QuestionWhich of the following summarizes a change that takes place as a solid turns to a liquid?469views
Open QuestionWhen the color, smell, and taste of the mixture changed, I knew a chemical ___ had taken place.495views
Open QuestionCiara's bike has rusted, which means that the iron in the metal changed to rust. What has occurred?536views
Open QuestionWhat is the process that changes one set of chemicals into another set of chemicals?551views