1.3 Common Assessment Study Guide Pre-AP

Use the diagram to answer the following

question.

Which diagram represents only ONE

compound composed of elements X and Z?

• A. 1

• B. 2

• C. 3

• D. 4

How many different elements are in this chemical formula: C₂H₂ClK₃

• 6
• 8
• 2
• 4

Tags

NGSS.MS-PS1-1

Which of the following chemical formulas represents a compound? 

• C₃
• O₂
• CH₃CHO
• H₂

Tags

NGSS.MS-PS1-1

• Element
• Compound

Tags

NGSS.MS-PS1-1

Which of the following is a sign that a chemical reaction has occurred?

• change in shape
• melting
• formation of a gas
• dissolving

Tags

NGSS.MS-PS1-2

Which of the following is NOT an example of a physical change?

• crumpled paper
• pencil sharpening
• shrunken clothing
• rust

Two solutions are mixed and a white precipitate is formed.

• Physical Change
• Chemical Change

The picture below shows an experiment in which a student mixed two clear liquids together.

The student can conclude a chemical change occurred because--

• A there was no change in mass during the experiment.

• B a solid precipitate formed when the two liquids were mixed.

• C there was no temperature change during the experiment.

• D one substance was more dense than the other.

Which of the following is a physical characteristic of a metal?

• texture
• malleable
• brittle
• semi-conductor

Tags

NGSS.5-PS1-3

Which of the following is a physical characteristic of a nonmetal?

• texture
• malleable
• brittle
• semi-conductor

Tags

NGSS.5-PS1-3