Chemistry Final Review 1 Fall 2024

Front

What is an SI base unit?

Back

An SI base unit is a fundamental unit of measurement defined by the International System of Units (SI) that is used to measure physical quantities. Examples include meter (length), kilogram (mass), and second (time).

Front

Which unit is NOT an SI base unit?

Back

Inch is NOT an SI base unit; it is a unit of length in the imperial system.

Front

How many electrons can a p orbital hold?

Back

A p orbital can hold a maximum of 6 electrons.

Front

What is the easiest element to form a 2+ ion?

Back

Magnesium is the easiest element to form a 2+ ion.

Front

How do you write 0.0000378 in scientific notation?

Back

0.0000378 is written as 3.78 x 10^-5 in scientific notation.

Front

What are significant figures?

Back

Significant figures are the digits in a number that contribute to its precision, including all non-zero digits, any zeros between significant digits, and trailing zeros in the decimal portion.

Front

How many significant figures are in the number 4,060?

Back

The number 4,060 has three significant figures.

Front

What is the definition of a chemical ion?

Back

A chemical ion is an atom or molecule that has gained or lost one or more electrons, resulting in a net electrical charge.

Front

What is the difference between cations and anions?

Back

Cations are positively charged ions formed by the loss of electrons, while anions are negatively charged ions formed by the gain of electrons.

Front

What is the maximum number of electrons in an s orbital?

Back

An s orbital can hold a maximum of 2 electrons.