Chemistry HL – Page 9

M25-CHEM-HL-TZ2-P1A-Q6

What is the charge of the monatomic ion usually formed by the element with the following electron configuration? \( [He]

A test tube contains a mixture of liquid hydrocarbons. What is the type of mixture and the best method of

Which property is the same for water containing tritium (\( ^3H \)) and water containing hydrogen (\( ^1H \))?

What is the maximum number of electrons that can occupy the \( n=3 \) main energy level?

What is the group number of the element whose successive ionization energies are shown in a graph where the first

Which oxygen-containing molecule has this low-resolution \( ^1H \) NMR spectrum? (Note: The spectrum image was removed from the source

\( 75 \, cm^3 \) of propane was completely combusted in \( 400 \, cm^3 \) of oxygen according to

The following thin-layer chromatogram was obtained from a mixture of naphthalene, \( C_{10}H_8 \), and naphthol, \( C_{10}H_7OH \). A

Consider a Maxwell-Boltzmann distribution graph showing the fraction of particles against kinetic energy, with a vertical dashed line indicating the

Which of the following species have the same number of outer electrons? The letters do not represent symbols of elements.