Which of the following noble gases is commonly found in t...
Which of the following noble gases is commonly found in the atmosphere?
Xenon
Neon
Helium
Argon
Correct answer is D
Argon, with the symbol Ar which is the third noble gas, in group 18 makes up about 1% of the Earth's atmosphere, making it the most common noble gas on Earth.
At room temperature and standard pressure, chlorine gas is in which state of matter? ...
The reaction between ethene and chlorine to form 1, 2-dichloroethane is ...
The relative atomic mass of chlorine is not a whole number because ...
Which are the correct IUPAC names for H-CO\(_2\)CH\(_3\) and CH \(\equiv\) CH...
An example of an acid salt is ...