IGCSE O Level Chemistry Exam MCQs – Practice Test 4 (Chapter 7)

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The MCQ: Upon heating either of the carbonate, hydroxide or nitrate, a common byproduct is; "Energy from Chemicals Notes" App APK Download [Free] with answers: water vapors, heat, oxides of same compounds, and carbon dioxide for online certificate programs. Practice Save Energy: O Level Chemistry Quiz Questions, download Kobo e-Book (Free Chapter) for online certificate programs.

Energy from Chemicals Test Questions and Answers PDF Download: MCQ 4

MCQ: 16

Upon heating either of the carbonate, hydroxide or nitrate, a common byproduct is

Heat
water vapors
oxides of same compounds
carbon dioxide

MCQ: 17

Energy can be conserved through

insulating lofts with fiber glass
use of lame burn engines
using catalytic converters
controlling temperature

MCQ: 18

In an endothermic reaction,

more light is produced
chemical bonds are formed
a lot of steam is produced
products contain more energy than the reactants

MCQ: 19

The word CHP stands for

Compressed hydrogenated petrol
combustible halogenated propane
combined heat and power
none of above

MCQ: 20

Overall energy change can be calculated by

subtracting the energy taken in when bonds are broken from the energy given out, when bonds are made
adding the energy taken in when bonds are broken and the energy given out, when bonds are made
subtracting the energy given out when bonds are made from the energy taken in, when bonds are broken
multiplying all the enthalpy changes

Energy from Chemicals Exam Prep – IGCSE O Level Chemistry App & e-Book Notes

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