Students recognize that a particular color change is a characteristic property of a substance and that a color change can also be used as evidence that a chemical reaction has occurred ... of ...

Chemical reactions make new chemicals. Atoms are rearranged during a chemical reaction, but the number of atoms does not change. A catalyst is a substance that speeds up a chemical reaction.

Some chemical reactions change temperature, change color, produce a gas, or make a solid from two liquids. Try this reaction and see what it does! Pour 1 tablespoon of hydrogen peroxide into a cup.

Reaction Chemistry & Engineering Communications contain novel scientific work of such importance that rapid publication is desirable. Authors should briefly indicate in a covering letter the reasons ...

The scientists achieved this sustained nuclear reaction, the first created by humans, on Dec. 2, 1942, in a squash court under the stands of Stagg Field at the University of Chicago. Nicknamed ...

For a chemical reaction to happen: There are different ways to determine the rate of a reaction. The method chosen usually depends on the reactants and products involved, and how easy it is to ...

Click reactions—the subject of the 2022 Nobel Prize in Chemistry—come in many forms, but they all share a few key features. Namely, click chemistry forges new chemical bonds quickly ...

Sarah Vine and Andrew Pierce bring their own no-holds-barred opinions, insights and reaction (clue is in the title) to the biggest stories of the week. New episodes every Wednesday, wherever you ...

Oct. 16, 2024 — Researchers have developed photoswitching molecules that reversibly change properties not only with light, but also with heat. They showed that the molecules can be used as a ...

Round 1 primarily went the way it was supposed to, but a few teams suffered losses that already have fans, the media, and others asking questions. Let’s dive into them. The marquee matchup of ...