EASY
MYP:4-5
IMPORTANT
Earn 100

Observe hot compress and cold compress. Which reaction is endothermic and which is exothermic ?

Important Questions on Energy

EASY
MYP:4-5
IMPORTANT
MYP Chemistry A concept-based approach Years 4&5>Chapter 4 - Energy>Thermite reaction>Q 1
Describe thermite reaction. What energy changes did you observe ?
EASY
MYP:4-5
IMPORTANT
MYP Chemistry A concept-based approach Years 4&5>Chapter 4 - Energy>Thermite reaction>Q 2
Write the balanced chemical equation for the reaction between iron (III) oxide and aluminium.
EASY
MYP:4-5
IMPORTANT
MYP Chemistry A concept-based approach Years 4&5>Chapter 4 - Energy>Thermite reaction>Q 3
What are the advantages of thermite reaction for railway construction ?
EASY
MYP:4-5
IMPORTANT
MYP Chemistry A concept-based approach Years 4&5>Chapter 4 - Energy>Thermite reaction>Q 4
A thermite reaction can occur if rusty steel is covered by aluminium paint and hit by a hammer. Explain why this might happen.
EASY
MYP:4-5
IMPORTANT
MYP Chemistry A concept-based approach Years 4&5>Chapter 4 - Energy>Utilizing exothermic reactions>Q 1
What factors influence people's choice of cooking fuel ?
EASY
MYP:4-5
IMPORTANT
MYP Chemistry A concept-based approach Years 4&5>Chapter 4 - Energy>Utilizing exothermic reactions>Q 2
Choose two of the fuels wood, coal, ethanol, biodiesel, crude oil, diesel, gasoline, natural gas and research their environmental impact.
EASY
MYP:4-5
IMPORTANT
MYP Chemistry A concept-based approach Years 4&5>Chapter 4 - Energy>Thinking in context>Q 1
The energy needs of the world's population are increasing. What are the reasons for this ?
EASY
MYP:4-5
IMPORTANT
MYP Chemistry A concept-based approach Years 4&5>Chapter 4 - Energy>Thinking in context>Q 2
The sun supplies solar energy to our plant; it is limitless and free. Are we utilising this energy source effectively? What are the challenges in exploiting this source of energy?