Teaching the VSEPR (valence shell electron-pair repulsion) model can be a tedious process. Traditionally, Lewis structures are drawn and the number of “electron clouds” (groups) around the central ...

Lewis structures are fundamental to learning chemistry, yet many students struggle to develop a complex understanding of its meaning and uses. Writing-to-Learn supports students in developing a deeper ...

A mobile ultrasound-based system enables real-time detection of contaminants in molten aluminum at 600–800 °C, addressing safety and quality concerns by identifying inclusions that can cause ...

NEW YORK (AP) — Scientists have unlocked one of the solar system’s many secrets from an unexpected source: a planetarium show opening to the public on Monday.. At the American Museum of Natural ...

Get Instant Summarized Text (Gist) Advanced electron crystallography has revealed that carmine, a natural red pigment, possesses a complex three-dimensional porous structure composed of two Ca 2 ...

The order will raise the tariffs on all steel and aluminum imports to the U.S. from 25 per cent to 50 per cent You can save this article by registering for free here. Or sign-in if you have an ...

Trump says he will double tariffs on steel and aluminum imports to 50 per cent A post on social media from the White House said the boosted duties would go into place next week Author of the article: ...