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Knallgas is the mixture of hydrogen and oxygen. It will explode when ignited.
Change in the colour of the cobalt(II) chloride solution due to heating and cooling.
This animation demonstrates the structure of nitrogen molecules, with one sigma and two...
Examining the colour of cobalt(II) chloride in water and hydrochloric acid.
An exercise about different types of bonds.
We observe whether a razor blade can float on the surface of different liquids.
Barium hydroxide reacts with ammonium nitrate while absorbing heat from their surroundings.