SE Review - All Topics APA

Front

What is the molar mass of Mg3N2?

Back

100.95 g/mol

Front

Which of these is not a property of noble gases?

Back

Flammable

Front

What shape would CCl4 have?

Back

Tetrahedral

Front

What is black ink an example of?

Back

Homogeneous mixture

Front

Who arranged the known elements into horizontal rows of increasing atomic mass leaving gaps for as yet undiscovered elements?

Back

Mendeleev

Front

What is the definition of a homogeneous mixture?

Back

A mixture that has a uniform composition and appearance throughout.

Front

What is the definition of a heterogeneous mixture?

Back

A mixture that consists of visibly different substances or phases.

Front

What is the significance of Mendeleev's periodic table?

Back

It organized elements by atomic mass and predicted the existence of undiscovered elements.

Front

What is the general property of noble gases?

Back

They are colorless, odorless, and unreactive under standard conditions.

Front

What is the molecular geometry of a molecule with four bonding pairs and no lone pairs?

Back

Tetrahedral.