Chemical Formulas and Bond Angles

Front

A solid produced during a chemical reaction in a solution is called a(n) _______.

Back

precipitate

Front

What is the correct formula for the compound aluminum hydroxide?

Back

Al(OH)3

Front

How many total atoms are in four formula units of Ca3(PO4)2?

Back

52

Front

What is the bond angle for AlCl₃ with a trigonal planar molecular shape?

Back

120°

Front

The illustration below shows an example of which type of reaction?

Back

Combustion and Synthesis Reaction

Front

What is a chemical formula?

Back

A representation of a substance using symbols for its constituent elements and numbers to indicate the ratio of atoms.

Front

Define bond angle in molecular geometry.

Back

The angle formed between two bonds that originate from the same atom.

Front

What is the molecular shape of CH4 (methane)?

Back

Tetrahedral.

Front

What type of bond is formed between two nonmetals?

Back

Covalent bond.

Front

What is the significance of the octet rule in chemical bonding?

Back

Atoms tend to bond in a way that gives them eight valence electrons, achieving a stable electron configuration.