The dot and cross diagram shows that a water molecule is made up of one oxygen atom joined to two hydrogen atoms, so the formula of water is H 2 O. A nitrogen molecule is made up of two nitrogen ...

Try this quiz based on GCSE Chemistry past papers. Choose the topic you would like to revise and answer the questions. By working your way through the science questions created by experts, you can ...

To mitigate global climate change, emissions of the primary culprit, carbon dioxide, must be drastically reduced. A newly ...

Recycling these materials is difficult due to the extensive cross-linking within the polymer structure, which gives rubber its durability but also makes it resistant to degradation.

This valuable study shows that an odorant that is typically thought of as a repellant actually activates both attractant and repellant olfactory neurons in C. elegans. Solid evidence is provided that ...