A glow stick contains two chemicals and a suitable dye (sensitizer, or fluorophor). This creates an exothermic reaction. The chemicals inside the plastic tube are a mixture of the dye and diphenyl oxalate. The chemical in the glass vial is hydrogen peroxide.
Answer:
write the uses of all elements which are given in the periodic table
Actual yield/theoretical yield x 100
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sodium bicarbonate and silver nitrate reacting is a chemical change</span>
Answer: Assume that the substance is hazardous. Always wear appropriate PPE and take steps to prevent contact.
Explanation:
When working with chemicals, a sound safety policy involving the use of chemicals should be established and maintained. This will help in safeguarding lives, properties and the environment.
The best safety approach when working with unknown chemical substances is to assume that the substance is hazardous and always wear appropriate PPE and take steps to prevent contact.
Since the substance is unknown, the best thing the person can do is to assume that it's harmful and hazardous and therefore take necessary precautions. The individual can put on laboratory coats, protective glasses, gloves etc. This is vital in order to prevent accidents from happening.