Aiden Gill, Heidi Foxford and, Dorothy Warren Solutions for Chapter: Energy Transfers in Chemistry, Exercise 5: Test-style questions

Author:Aiden Gill, Heidi Foxford & Dorothy Warren

Aiden Gill Science Solutions for Exercise - Aiden Gill, Heidi Foxford and, Dorothy Warren Solutions for Chapter: Energy Transfers in Chemistry, Exercise 5: Test-style questions

Attempt the practice questions on Chapter 8: Energy Transfers in Chemistry, Exercise 5: Test-style questions with hints and solutions to strengthen your understanding. Cambridge Lower Secondary Science Stage 9: Workbook solutions are prepared by Experienced Embibe Experts.

Questions from Aiden Gill, Heidi Foxford and, Dorothy Warren Solutions for Chapter: Energy Transfers in Chemistry, Exercise 5: Test-style questions with Hints & Solutions

MEDIUM
Lower Secondary Stage 9
IMPORTANT

The diagram shows a burring candle.

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Describe what happens to the wax as the candle burns. 

MEDIUM
Lower Secondary Stage 9
IMPORTANT

When wax burns is the reaction exothermic or endothermic? Give a reason for your answer. 

MEDIUM
Lower Secondary Stage 9
IMPORTANT

Safi has drawn a sketch graph to show how the temperature of the wax changes as the candle burns. Explain why there is a plateau in the graph. 

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