Chemical Reactions

What type of reaction involves the breaking down of a substance into simpler substances?

• Decomposition Reaction

• Replacement Reaction

• Synthesis Reaction

What type of reaction involves 2 substances combining to form 1 new compound?

• Decomposition Reaction

• Synthesis Reaction

• Replacement Reaction

What type of reaction involves one element replacing another element in a compound?

• Single Replacement Reaction

• Decomposition Reaction

• Synthesis Reaction

Which of the following is NOT an example of a chemical reaction?

• Wood Burning
• A cake baking in an oven
• Melting Ice Cream
• Mixing Vinegar and Baking Soda

Tags

NGSS.MS-PS1-2

What are the reactants in the chemical equation pictured?

• CH₄ and CO₂
• CH₄ and O₂
• CO₂ and H₂O
• O₂ and H₂O

Tags

NGSS.MS-PS1-2

NGSS.MS-PS1-5

What are the products of the chemical reaction pictured?

• CH₄ and CO₂
• CH₄ and O₂
• CO₂ and H₂O
• O₂ and H₂O

Tags

NGSS.MS-PS1-2

NGSS.MS-PS1-5

According to the law of conservation of mass...

• sometimes atoms are lost
• sometimes atoms are gained
• atoms are never lost nor gained
• atoms are lost and gained

Tags

NGSS.MS-PS1-2

NGSS.MS-PS1-5

The production of carbon dioxide gas when baking soda and vinegar reacted indicated a _____________.

• Chemical change

• Physical change

Tags

NGSS.MS-PS1-2

What is the term for a solid that is formed by mixing together two solutions?

• Endothermic

• Precipitate

• Disolved solution

• Exothermic

A reaction that gives off heat

• Exothermic

• Endothermic

Tags

NGSS.MS-PS1-4

NGSS.MS-PS1-6

NGSS.MS-PS3-4