Front

What is the study of chemical processes in living organisms called?

Back

Biochemistry.

Front

In which block of the periodic table can osmium be found?

Back

D block.

Front

Which property could not be used to distinguish between table salt and table sugar?

Back

Color.

Front

How does the Rutherford model describe the structure of atoms?

Back

A positively charged nucleus surrounded by electrons, which occupy most of the volume.

Front

How many sublevels does the principal energy level n = 4 have?

Back

4 sublevels.

Front

What is the definition of pure chemistry?

Back

The study of the fundamental aspects of chemical substances and reactions without a specific application in mind.

Front

What is inorganic chemistry?

Back

The branch of chemistry that deals with inorganic compounds, typically those that do not contain carbon-hydrogen bonds.

Front

What is the difference between boiling point and melting point?

Back

Boiling point is the temperature at which a liquid turns into vapor, while melting point is the temperature at which a solid turns into a liquid.

Front

What is density?

Back

Density is the mass per unit volume of a substance, often expressed in grams per cubic centimeter (g/cm³).

Front

What is the significance of the atomic nucleus?

Back

The atomic nucleus contains protons and neutrons and is the central part of an atom, determining its mass and identity.