Amplify Chemistry 2.4: Critical Juncture Assessment

Will the properties of the two samples be the same or different?

• Different because there are more repeating groups in Sample 2.

• Different because the repeating groups are different.

• Same because they have one of the same types of atoms.

• Same because they have the same number of atoms.

Tags

NGSS.MS-PS1-1

A scientist mixed a colorless liquid (melts at 12°C) and a yellow solid (melts at 390°C). She found a gray solid made of repeating atoms. Which diagram shows the repeating groups of atoms in the samples?

• Diagram A

• Diagram B

• Diagram C

• Diagram D

Tags

NGSS.MS-PS1-1

NGSS.MS-PS1-2

NGSS.MS-PS1-5

Workers mixed two low-melting substances in a sealed container and found two high-melting substances. Which diagram shows the repeating groups of atoms for the new substances?

• Diagram A

• Diagram B

• Diagram C

• Diagram D

Tags

NGSS.MS-PS1-1

NGSS.MS-PS1-2

The diagram shows repeating groups of atoms in two gas samples. Will their other properties be the same or different?

• The properties will be the same because the groups have the same types of atoms.

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

• The properties will be different because there are more groups in Sample 1.

• The properties will be different because the groups have different numbers of atoms.

Tags

NGSS.MS-PS1-1

A scientist mixed a white solid (boils at 800°C) and a colorless gas (boils at 70°C). One resulting substance boils at 245°C and is made of repeating atoms shown above. Which diagram shows the repeating groups of atoms mixed together?

• Diagram A

• Diagram B

• Diagram C

• Diagram D

Tags

NGSS.MS-PS1-1

NGSS.MS-PS1-2

Andres mixed two liquids in a sealed container and found two solids. Which diagram shows the repeating groups of atoms in the solids?

• Diagram A

• Diagram B

• Diagram C

• Diagram D

Tags

NGSS.MS-PS1-1

NGSS.MS-PS1-2

Will the properties of the two samples be the same or different? (Properties include smell, color, and melting point.)

• Different because there are more repeating groups in Sample 2.

• Different because the repeating groups have different numbers of atoms.

• Same because the repeating groups have the same types of atoms.

• Same because both are solids at room temperature.

Tags

NGSS.MS-PS1-1

NGSS.MS-PS1-2

Jacob mixed a colorless gas with no smell and a colorless liquid that smells like bleach. He found a green gas as one of the ending substances. Which diagram shows the repeating groups of atoms that make up the samples Jacob mixed?

• Diagram A

• Diagram B

• Diagram C

• Diagram D

Tags

NGSS.MS-PS1-1

NGSS.MS-PS1-2

NGSS.MS-PS1-5

Paula mixed two colorless substances in a sealed container and found two yellow substances. Which diagram shows the repeating groups of atoms in the ending substances?

• Diagram A

• Diagram B

• Diagram C

• Diagram D

Tags

NGSS.MS-PS1-1

NGSS.MS-PS1-2

NGSS.MS-PS1-5

Will the properties of the two samples be the same or different? (Examples: smell, color, melting point.)

• Different because there are more repeating groups in Sample 1.

• Same because both samples are red at room temperature.

• Same because both samples are powdery solids at room temperature.

• Same because the repeating groups of atoms are the same.

Tags

NGSS.MS-PS1-1