Chemical Reactions

Serena mixed two samples together: a gray solid that smells like flowers and a gray solid that smells like bleach. She analyzed the results and found two ending substances. One of the ending substances was a white solid. This ending substance is made up of the repeating group of atoms shown above. Which of the diagrams to the left shows the repeating groups of atoms that make up the samples Serena mixed together?

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Tags

NGSS.MS-PS1-1

NGSS.MS-PS1-2

NGSS.MS-PS1-5

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Tags

NGSS.MS-PS1-1

NGSS.MS-PS1-2

NGSS.MS-PS1-5

A chemist mixed two samples together: a gray liquid that boils at 103°C and a colorless gas that boils at 19°C. She analyzed the results and found two ending substances. One of the ending substances was a pink liquid. This ending substance is made up of the repeating group of atoms shown above. Which of the diagrams to the left shows the repeating groups of atoms that make up the samples the chemist mixed together?

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Tags

NGSS.MS-PS1-1

NGSS.MS-PS1-2

Which is NOT a substance?

• Water (H2O)

• Diamond (C)

• Hydrogen peroxide (H2O2)

• Chicken nuggets (Nug1T)

Tags

NGSS.MS-PS1-2

Which of the following is defined as, "a group of atoms joined together in a particular way"?

• molecule

• atom

• product

• reactant

Tags

NGSS.MS-PS1-1

True or False: During a chemical reaction, atoms do change from one type to another.

• True

• False

Tags

NGSS.MS-PS1-5

A substance that is formed as the result of a chemical reaction is a __________________

• Product

• Reactant

• Starters

• Enders

Tags

NGSS.MS-PS1-2

What is the probable product of a double-replacement reaction?

• A new compound and a replaced metal

• A new compound and a replaced nonmetal

• 2 different compounds 1 aqueous and 1 that is a solid, liquid or gas

• A single compound

The substances at the beginning of a chemical equation are called the ____

• product

• yield

• chemical symbol

• reactants

In a chemical reaction, everything to the right of the arrow is called ______________.

• Products

• Yields

• Molecules

• Reactants