Curriculum
Course: IB Chemistry SL
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Curriculum

IB Chemistry SL

Structure 1 — Models of the particulate nature of matter

0/17 Dr Dabour Hub Science Diagram and Course Material

Structure 2 — Models of bonding and structure

0/16 Dr Dabour Hub Science Diagram and Course Material

Structure 3 — Classification of matter

0/10 Dr Dabour Hub Science Diagram and Course Material

Reactivity 1 — What drives chemical reactions?

0/17 Dr Dabour Hub Science Diagram and Course Material

Reactivity 2 — How much, how fast, how far?

0/13 Dr Dabour Hub Science Diagram and Course Material

Reactivity 3 — What are the mechanisms of chemical change?

0/35 Dr Dabour Hub Science Diagram and Course Material

Additional lessons

0/98 Dr Dabour Hub Science Diagram and Course Material
Quiz

R1.3 Energy from fuels – Exam questions

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  • Questions count: 10
  • Passing grade: B+
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1.

A hydrogen–oxygen fuel cell produces electricity from the reaction of

petrol with air
hydrogen with oxygen
zinc with acid
methane with oxygen
2.

Hydrogen for fuel cells is often made from

air
fossil fuels or electrolysis of water
sea salt
limestone
3.

The energy change in a fuel cell is

electrical to chemical
heat to light
nuclear to electrical
chemical to electrical
4.

SPM.1A.HL.TZ0.17

SPM.1A.HL.TZ0.17

A
B
C
D
5.
Burning a fuel is an example of an:
Endothermic reaction
Exothermic reaction
Physical change
Neutralisation
6.
A student claims firework colours come from the burning of carbon in the fuel. Which evaluation is best?
The student is correct; carbon gives every colour
Colours come from the paper wrapping
The colours come from metal ions whose excited electrons emit specific photons as they fall to lower levels
Colours come from sound waves
7.
How could you use bond energies to predict whether burning a new fuel releases energy?
Add the energies of all bonds broken, subtract the energies of all bonds formed, and check whether the result is negative
Measure the fuel's colour
Count the atoms in the fuel only
Add all bond energies together
8.
Which method best compares the energy released by two fuels per gram?
Burn different masses
Measure flame colour
Use one trial only
Burn equal masses under identical water volumes, measure ΔT and calculate q/m
9.
Which method best compares energy released by burning two hydrocarbon fuels?
Burn equal masses under equal water volumes and compare temperature rise
Burn different masses
Compare colour
Measure smell
10.
The chart compares fuels. About how many times more energy per kg does fission release?
Dr Dabour Hub Science Diagram and Course Material
About 3 times
About 3 million times
About 30 times
About 1 000 times
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Part of Reactivity 1 — What drives chemical reactions? — see every lesson and quiz in this unit.
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