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Energy Changes by Sid and Eleanor

Descripción

Test your knowledge of Chapter 7 in the new GCSE Separate Sciences Chemistry textbook! Have oodles of fun as you quiz away the day!
Eleanor Burnham
Test por Eleanor Burnham, actualizado hace más de 1 año
Eleanor Burnham
Creado por Eleanor Burnham hace casi 8 años
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Resumen del Recurso

Pregunta 1

Pregunta
In this diagram you can see an arrow with delta H (triangle H) on it. But what does this MEAN?!
Image:
d56bf4dc-59e3-4932-8bea-b1538fcd58cf.gif (image/gif)
Respuesta
  • Change in horses
  • Change in hats
  • Change in temperature
  • Change in energy

Pregunta 2

Pregunta
Which of the following statements is true of exothermic reactions?
Image:
b533ff32-8352-477b-bc4a-7d60e46fa246 (image/jpeg)
Respuesta
  • Photosynthesis is an example of this.
  • It gives out energy to the surroundings.
  • It make cold.
  • The products have more energy than the reactants.

Pregunta 3

Pregunta
Which type of reaction can be used to make an ice pack?
Image:
e2ef4950-fcab-47a8-a907-faf79b8efee4 (image/jpeg)
Respuesta
  • Exothermic
  • Endothermic
  • Combustion
  • What's a reaction?
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