Intro to Chem Ch5 Chemical Reactions Review

An ending substance that is made during a chemical reaction is called

• Reactant
• Product
• Atom
• Molecule

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NGSS.MS-PS1-2

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The starting substances of a chemical reaction is called

• products
• substances
• reactants

What are Chemical Reactions?

• It's when you mix substances.
• a process in which atoms rearrange to form new substances
• When something bubbles.
• letter and numbers showing the types and number of atoms

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NGSS.MS-PS1-2

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Describes the number of atoms in a compound of each element. 

• coefficient 
• superscript 
• subscript 
• SI unit 

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Which is the product in the reaction shown?

• Al₂O₃

• Al

• O₂

Is iron (Fe) an element or a compound?

• compound

• element

CaCO₃ represents a chemical

• Symbol
• Formula
• Subscript
• Reaction

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NGSS.MS-PS1-1

In the following equation, what are the products?
HCl + Zn → H₂ + ZnCl₂

• HCl + Zn
• H₂ + ZnCl₂
• Zn → H₂
• the stuff on the outside

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NGSS.MS-PS1-2

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What is the arrow in a chemical equation...
H_{2 +} O --> H₂O

• Reactants
• Products 
• Yields 
• Chemical Equation 

Tags

NGSS.MS-PS1-5

In a ___________change, a substance changes into a different substance.

• Physical
• Chemical

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NGSS.MS-PS1-2

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