A cotton swab is dipped into concentrated hydrochloric acid (producing hydrogen chloride gas) while a second on is dipped into concentrated aqueous ammonia (producing ammonia gas). Both cotton swabs ...

Initial temperature of hydrochloric acid / °C Highest temperature ... from the acid and the OH-ions from the alkali react together to form water. As this happens, energy is released which is ...

In addition to funding, the winners will also gain access to exclusive resources, mentorship, and global networks provided by HCL Group and UpLink. The Tackling Water Pollution Challenge was ...

Chloride ions, via the addition of a pinch of potassium chloride or dilute hydrochloric acid, will immediately stop the oscillations. The use of clean apparatus is therefore essential. The reaction ...