Types of Chemical Reactions

A chemical reaction that combines two reactants into one larger product is called a

• Combustion Reaction

• Synthesis or Combination Reactions

• Single Displacement Reaction

• Decomposition Reaction

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In an _______________ reaction heat is given off to the surroundings and an increase in temperature is measured.

• Combination

• Exothermic

• Endothermic

• Displacement

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An ice pack is an example both a(n _____________ and a(n) _________________ reaction.

• Combustion and Exothermic

• Displacement and Endothermic

• Combination and Exothermic

• Decomposition and Endothermic

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A chemical reaction that has oxygen and a hydrocarbon as its reactants and results in the products water and carbon dioxide, is most likely which type?

• Combustion

• Endothermic

• Decomposition

• Neutralization

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This type of reaction typically has an acid as one reactant and a base as the other. the products are a salt and water and the pH is stabilized.

• Combustion

• Combination

• Exothermic

• Neutralization

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Feels cold

• Endothermic

• Exothermic

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What type of reaction is shown in the photo?

• Exothermic
• Isothermic
• Endothermic
• None of the  above

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A student mixed two chemicals to allow them to react. The temperature before the reaction was 25 ° C. The temperature after the reaction was 18° C. Which of the following is true?

• The temperature did not change.

• It is an endothermic reaction

• It is an exothermic reaction

• Energy is released from the reaction into the surrounding.

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The graph below shows the temperature of 2 chemical reactions over time. 

Choose the correct statement based on the graph.

• Reaction A is an endothermic reaction because the temperature increased over time.

• Reaction B is an exothermic reaction because the temperature decreased over time.

• Reaction A is an exothermic reaction because the temperature decreased over time.

• Reaction B is an endothermic reaction because the temperature decreased over time.

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Exothermic reactions...

• Absorb energy
• Release energy
• Release Color
• Absorb Color

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