Unreacted Reactants: If a reactant is in excess, some of its particles will remain unreacted in the final mixture. The key to ...

The word 'pure' is used in chemistry in a different way from its everyday meaning. For example, shops sell cartons labelled as 'pure' orange juice. The label means that the contents are just orange ...

How do complex mixtures of chemicals affect our health? New research has shown that chemicals that occur in complex mixtures and in concentration ratios as found in humans act together. Even if the ...

Chemistry: Elements, Compounds, and Mixtures (2nd Edition) (1983) is a 20-minute educational film from the *Chemistry Series* by Coronet Instructional Films, distributed by Simon and Schuster.

The questions in this quiz are suitable for GCSE chemistry students studying pure substances and mixtures, paper chromatography and distillation. If you struggled with the quiz, don't panic - we've ...

This paper reviews major activities outside the United States on human health issues related to chemical mixtures. In Europe an international study group on combination effects has been formed and has ...

The assessment of chemical mixtures is a complex topic for toxicologists, regulators, and the public. In this article the linkage between the science of toxicology and the needs of governmental ...

Scientists have unwrapped long-sought details of embalming practices that ancient Egyptians used to preserve dead bodies. Clues came from analyses of chemical residue inside vessels from the only ...

Automated pipetting platforms for the preparation and measurement of plasma samples and chemical mixtures in high-throughput bioassays at the UFZ. "In our everyday lives, we are exposed to a wide ...