Find the Indicated Term of the Sequence

question 40

Multiple Choice

Find the indicated term of the sequence.
-The twenty-fifth term of the arithmetic sequence 3 , -3 , -9 , ...

• A) 147
• B) -141
• C) -147
• D) 153

---

Definitions:

Structural Formula

A type of chemical formula that shows the spatial arrangement of the atoms in a molecule. Compare with the simplest formula and molecular formula.

Molecular Formula

The type of chemical formula that gives the actual numbers of each type of atom in a molecule. Compare with simplest formula and structural formula.

Lewis Structure

A graphical representation of the valence electrons in molecules, showing how the atoms are bonded together and the lone pairs of electrons.

Orbital Diagram

A visual representation of the electron configuration of an atom or molecule, showing how electrons are distributed among orbitals.