Mrs. Ann's Chemical Reactions Test Review Chapter 1

Use the information and your knowledge of science to answer the question. Students conducted an experiment in which sugar was added to separate beakers of water and sulfuric add. Once the sugar was added, the students recorded their observations: Beaker #1 (sugar and water): no color change, no solid forms, solid sugar dissolves, no bubbles Beaker #2 (sugar and sulfuric acid): color change, solid forms, bubbles form, gas given off In which beaker or beakers did a chemical reaction most likely occur?

• Beaker 2

• Beaker 1

• Neither beaker 1 or 2

• Both beaker 1 and 2

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NGSS.MS-PS1-2

What is the the relative size of things?

• Property

• Scale

• Model

• Extended structure

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NGSS.MS-ESS1-3

What is a group of atoms joined together in a particular way?

• Substance

• Atoms

• Molecule

• Extended structure

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NGSS.MS-PS1-1

What is a structure formed by repeating groups of atoms that link together in a large network?

• molecule

• extended structure

• substance

• reactant

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NGSS.MS-PS1-1

What are the tiny pieces that all matter—all the stuff in the world—is made of?

• molecules

• substances

• reactants

• atoms

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NGSS.MS-PS1-5

NGSS.MS-PS1-1

The temperature at which a substance changes from the liquid phase to the gas phase...

• freezing point

• melting point

• boiling point

• high temperature

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NGSS.MS-PS1-4

The diagram above shows the repeating groups of atoms that make up two samples. Both samples are gases at room temperature. Will the other properties of the samples likely be the same or different? (Examples of properties are smell, color, and the temperature at which a substance melts.)

• The other properties will likely be the same because the repeating groups of atoms that make up the two samples have the same types of atoms.

• The other properties will likely be the same because both samples are gases at room temperature.

• The other properties will likely be different because there are more repeating groups of atoms in Sample 1.

• The other properties will likely be different because the repeating groups of atoms that make up the two samples have different numbers of atoms.

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NGSS.MS-PS1-1

The diagram above shows the repeating groups of atoms that make up two samples. Both samples are green gases at room temperature. Will the other properties of the two samples be the same or different? (Examples of properties are smell, color, and the temperature at which a substance melts.)

• The other properties will be the same because the repeating groups of atoms that make up the two samples are the same.

• The other properties will be different because there are more repeating groups of atoms in Sample 2.

• The other properties will be the same because both samples are green at room temperature.

• The other properties will be the same because both samples are gases at room temperature.

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NGSS.MS-PS1-2

NGSS.MS-PS1-1

the starting materials in a chemical reaction are called what?

• Products

• Reactants

• Starters

• Enders

Select all that are correct: What are some examples of properties..

• color

• melting point

• boiling point

• smell

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NGSS.MS-PS1-2

NGSS.MS-PS1-4