chemical reaction

All you need to do is shake the pack vigorously for a couple of seconds, triggering a safe chemical reaction that will lead to up to 10 hours of consistent heat in 15 to 30 minutes.

This speeds up the chemical reactions involved in charging and discharging, allowing the battery to reach almost full capacity in just 10 minutes.

This warmer atmosphere then speeds up weathering of rocks on Earth’s surface, by boosting the chemical reaction between carbon dioxide–rich rainwater and the rocks.

Most efforts so far have required expensive catalysts—substances that boost the speed of a chemical reaction—or multiple energy-intensive processing steps, which means the resulting fuel is far pricier than fossil fuels.

Your body's energy needsMetabolism is a biological term that refers to all the chemical reactions needed to maintain life in an organism.

For every 50 degrees Centigrade, you change the chemical reaction rate by a factor of two.

Gastric juice is slightly acid in its chemical reaction, containing about .2 per cent free hydrochloric acid.

The iron oxide is put in it to make it more basic for the chemical reaction that is to take place.

And then, as though slowly dissolving through some chemical reaction, the old man began to fade.

If the soil contains acid, a chemical reaction occurs between it and zinc sulfid, and hydrogen sulfid gas is liberated.

Man cannot love the insect or the chemical reaction which he studies, without sacrificing a part of himself.