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Which chemical element has atomic number 53 and is essential for making thyroid hormones?
Answer
Iodine
Which chemical compound is the main ingredient in plaster of Paris?
Answer
Calcium sulfate hemihydrate
Which chemical element has atomic number 18 and is a noble gas used in some lighting?
Answer
Argon
Which chemical element was the first to be discovered using spectroscopy?
Answer
Cesium
Which compound is the triatomic form of oxygen with the formula O₃?
Answer
Ozone
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Latest trivia questions
Which chemical compound is the main ingredient in plaster of Paris?
Answer
Calcium sulfate hemihydrate
Which compound is the active ingredient in aspirin?
Answer
Acetylsalicylic acid
Which chemical element is named after the Moon goddess Selene?
Answer
Selenium