Dot and cross diagrams help us to model when ions are formed from atoms. Here’s an example using sodium and chlorine. They form ions which bond to form sodium chloride. 2. Work out how many ...

The formula is H 2 O so the dot and cross diagram includes two H atoms and one O atom. H has 1 outer electron. O has 6 outer electrons. The H circles must each overlap the O circle. Nitrogen ...

Conventional catalysts for hydrogen production via water electrolysis usually contain precious metals and are expensive.

The main component of lignocellulose is cellulose, a beta(1–4)-linked chain of glucose molecules. Hydrogen bonds between different layers of the polysaccharides contribute to the resistance of ...

In fact, each gene in cellular DNA contains the code for a unique protein structure. Not only are these proteins assembled with different amino acid sequences, but they also are held together by ...

By using three broad types of measurements—working capital, asset performance, and capital structure—you may evaluate the strength of a company's balance sheet, and thus, its investment quality.

While we wouldn’t want to document a computer motherboard with ASCII schematics, it’s great for a quick-and-dirty circuit diagrams. Not exactly schematics, but [Duckman] has some Arduino ...

Narrowing down a list of red dot sights is like determining the best flavor of ice cream. There are a ton of options out there. Most perform really well. Some are excellent. And, rarely, you’ll find a ...

A research team has achieved coherent population trapping (CPT) in a semiconductor double quantum dot (DQD) system.

Five more round-trip flights are destined for Ronald Reagan Washington National Airport (DCA) from outside its 1,250-mile ...

The dot-com bubble was a period during which rampant speculation and bullish investment led to the overvaluation (and subsequent crash) of the young internet technology industry on Wall Street.

The U.S. Department of Transportation has tentatively approved two slot exemptions at Reagan Washington National Airport to each of five carriers to operate new nonstop roundtrip service, the agency ...