The process of a gas changing directly from a liquid to a solid is known as freezing.
The reaction 2H₂ + O₂ → 2H₂O represents a:
Which of the following is a noble gas?
What is the IUPAC name for CH₃CH₂CH₂CH₂CH₃?
What is the common name for acetic acid (CH₃COOH)?
In the periodic table, elements in the same period have the same number of:
Which of the following is an example of a secondary alcohol?
What type of isomerism is exhibited by molecules with the same molecular formula but different arrangements of atoms in space?
The Bohr model successfully explains the spectra of:
What is the name given to a species with the same number of protons but different neutrons?
Which element has the electron configuration 1s² 2s² 2p⁶ 3s² 3p⁶ 4s² 3d¹⁰ 4p⁶ 5s² 4d¹⁰ 5p⁶ 6s² 4f¹⁴ 5d¹⁰ 6p⁶ 7s¹?