Anniversaries conjure to many people’s minds the scent of roses or the pop of a cork from a bottle of champagne. Not so for people in grief. Psychologists first wrote about anniversary reactions in ...

In a combustion reaction, fuel is burned and reacts with oxygen to release energy. Respiration is the chemical change that takes place inside living cells. Glucose and oxygen are used to release ...

Learn adult first aid for someone suffering a severe allergic reaction, including signs and symptoms and what to do in an emergency. Anaphylaxis (also called anaphylactic shock) is a severe allergic ...

Reaction kinetics and dynamics refers to the study of why, how and how fast chemical processes take place. Chemists seek to understand the details of change at the molecular and quantum level and how ...

An acid and alkali will neutralise each other and produce a salt and water. This is called a neutralisation reaction. The name of the salt produced can be worked out from the names of the acid and the ...

It's rare, but you can have allergies to sunlight, sweat, and even water. Treatment for allergies includes antihistamines and immunotherapy to relieve and prevent symptoms. Difficulty breathing, hives ...

Fusion is among the most environmentally friendly sources of energy. There are no CO 2 or other harmful atmospheric emissions from the fusion process, which means that fusion does not contribute to ...

Reaction kinetics is fundamental to organic synthesis. Here the authors build a 10-element reaction database and develop a reactive machine learning potential to accelerate transition state search and ...