AP Chemistry Exam Review

A starting substance that is part of a chemical reaction?

• property

• product

• reactant

• atoms

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NGSS.MS-PS1-1

Tiny pieces that all matter is made of?

• Ions

• Molecules

• Atoms

• Electrons

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Letters and numbers showing the types and numbers of atoms that repeat to make up a substance?

• Molecules

• Product

• Reactant

• Chemical formula

Tags

NGSS.MS-PS1-1

A group of atoms joined together in a particular way are called?

• atoms

• reactants

• molecules

• ions

Tags

NGSS.MS-PS1-1

The Periodic Table of Elements is most related to...

• Chemistry

• Geology

• Astronomy

• Biology

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What is the study of matter and how it changes?

• Biology

• Physics

• Chemistry

• Geology

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Which of the following is a chemical property of matter?

• Color

• Density

• Flammability

• Melting point

What are the components of an atom?

• nucleus

• electrons

• protons

• neutrons

Tags

NGSS.MS-PS1-1

One main difference between water and oil molecules is...?

• Oil has a lower density than water so it always floats on top

• Oil molecules are non-polar (hydrophobic or water fearing)

• Water molecules are polar (strongly attracted to each other)

• Water has a lower density than water so it always floats on top

The outer shell of an atom is usually where valence electrons can be found.

• True

• False

• Neither True or False

• I don't know

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