Chemical Reactions: Chapter 2

What is something that is made of all the same atoms or groups of atoms?

• Substance

• Molecule

• Reactant

• Property

Tags

NGSS.MS-PS1-1

What is something that can be observed about a substance, such as color, smell, or boiling point?

• Substance

• Model

• Scale

• Property

Tags

NGSS.MS-PS1-2

What is an object, diagram, or computer program that helps us understand something by making it simpler or easier to see?

• Scale

• Model

• Property

• Substance

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

• molecules

• substances

• reactants

• atoms

Tags

NGSS.MS-PS1-1

NGSS.MS-PS1-5

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

• The same because the repeating groups of atoms that make up the two samples have two of the same types of atoms.

• The same because both samples have the same number of atoms.

• Different because the repeating groups of atoms that make up each sample are different.

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

Tags

NGSS.MS-PS1-1

What is the reddish brown substance that is found in Westfield's water.

• rust

• fertilizer

• pipe substance

• nitrogen

Which claim answers the question: How did the rust form?

• The iron pipes and the fertilizer changed into rust.

• The iron pipes changed into rust.

• The fertilizer changed into rust.

• All of the above.

Tags

NGSS.MS-PS1-1

NGSS.MS-PS1-2

NGSS.MS-PS1-5

What is a product (in chemical reactions)?

• Something a company will try to sell to you

• Also a potato

• When the mitosis space-time folds into a tetrahedron flux-capacitor

• The substance(s) that are created after a chemical reaction

Tags

NGSS.MS-PS1-2

NGSS.MS-PS1-5

In this chemical reaction, which is the product/s?

Magnesium + Oxygen --> Magnesium oxide

• magnesium

• magnesium and oxygen

• magnesium oxide

• oxygen

Tags

NGSS.MS-PS1-1

Can one substance change into another substance? (read carefully)

• No, because things can mix, but they can't change into new things

• Yes, because new atoms can be created

• No, because atoms can not be destroyed

• Yes, because atoms can be rearranged.

Tags

NGSS.MS-PS1-2

NGSS.MS-PS1-5