Chemistry Sem 1 Exam Review

Front

What is the term for evaluating both numerical and descriptive data?

Back

Measurements

Front

What is the electron configuration for the element Neon (Ne)?

Back

1s² 2s² 2p⁶

Front

What is the term for a substance that cannot be broken down into simpler substances by chemical means?

Back

Element

Front

What is the noble gas abbreviation for the electron configuration of Sodium (Na)?

Back

[Ne] 3s¹

Front

Identify boiling water as a physical change (PC) or a chemical change (CC).

Back

Physical change (PC)

Front

What is the definition of a chemical change?

Back

A process where substances transform into different substances with different properties.

Front

What is the definition of a physical change?

Back

A change that affects one or more physical properties of a substance without altering its chemical composition.

Front

What is the periodic table?

Back

A tabular arrangement of elements organized by increasing atomic number, showing periodic trends.

Front

What is an atom?

Back

The smallest unit of an element that retains the properties of that element.

Front

What is a molecule?

Back

A group of two or more atoms bonded together, representing the smallest fundamental unit of a chemical compound.