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The Language of Chemistry Chemical Reactions : The Products of a Reaction Chemists find the identity of the products of a reaction by experimentation and observation. Study the reaction below:
In this reaction hydrogen sulphide gas is burnt in oxygen gas. The products of this reaction are sulphur and water. If hydrogen sulphide gas and oxygen gas are mixed in a gas jar and a burning match or taper is placed near the mouth of the gas jar. A bright, blue flame can be seen that moves down the gas jar. When the reaction is finished you can see a yellow powder on the inside of the gas jar as well as condensation. This yellow powder is the element sulphur. The arrow in the equation tells you that a solid has been made during the reaction. The condensation can be proved to be water by testing with cobalt II chloride paper which turns from blue to pink only in the presence of water. |
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