Lucy Hawkins, Fran Eardley, Stuart Lloyd and, Gemma Young Solutions for Chapter: Energy Transfers in Chemistry, Exercise 5: Exercise 5

Author:Lucy Hawkins, Fran Eardley, Stuart Lloyd & Gemma Young

Lucy Hawkins Science Solutions for Exercise - Lucy Hawkins, Fran Eardley, Stuart Lloyd and, Gemma Young Solutions for Chapter: Energy Transfers in Chemistry, Exercise 5: Exercise 5

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

Questions from Lucy Hawkins, Fran Eardley, Stuart Lloyd and, Gemma Young Solutions for Chapter: Energy Transfers in Chemistry, Exercise 5: Exercise 5 with Hints & Solutions

MEDIUM
Lower Secondary Stage 9
IMPORTANT
Cambridge Lower Secondary Science Stage 9: Student's Book>Chapter 8 - Energy Transfers in Chemistry>Exercise 5>Q 1

When a person is exercising, their muscles contract more frequently and the rate of respiration increases. How can we tell that respiration is an exothermic process?

MEDIUM
Lower Secondary Stage 9
IMPORTANT
Cambridge Lower Secondary Science Stage 9: Student's Book>Chapter 8 - Energy Transfers in Chemistry>Exercise 5>Q 2

Why might some exothermic reactions be dangerous to do in a school laboratory?

MEDIUM
Lower Secondary Stage 9
IMPORTANT
Cambridge Lower Secondary Science Stage 9: Student's Book>Chapter 8 - Energy Transfers in Chemistry>Exercise 5>Q 3

The reaction of elements in group 1 with water is an exothermic reaction. Explain why some of these reactions cannot be safely in school.