A range of production processes frequently employ acid mixtures comprised of two or three acids; for example, nitric acids, sulfuric acids and hydrochloric acids. In order to use these acids safely ...

Students will learn how to categorize matter as either pure substances or mixtures. Students will apply tests, based on physical properties of matter samples, to determine whether a mixture is ...

A three-person mixture of unknown DNA was found under a 21-year-old University of Idaho student’s fingernails after she and three other students were killed at an off-campus home in November 2022, a ...