The Ideal Gas Law is expressed mathematically as
P1 /T1 = P2/T2
P1/V1 = P2V2
PV =nRT
PV =KT
V1/T1 = V2/T2
Correct answer is C
The empirical relationships among the volume, the temperature, the pressure, and the amount of a gas can be combined into the ideal gas law, PV = nRT.
covalent
dative
electrovalent
hydrogen
metallic
Correct answer is C
No explanation has been provided for this answer.
The furring of kettles and boilers are caused by
calcium hydroxide
calcium hydrogen trioxocarbonate (IV)
calcium trioxocarbonate (IV)
calcium tetraoxocarbonate
magnesium tetraoxocarbonate (VI)
Correct answer is C
The furring of kettles or boilers - this is as a result of the decomposition of Ca(HCO3)2 into CaCO3, and this coats the inside of a kettle or boiler used in heating water containing dissolved Ca(HCO3)2.
Which of the following metals is NOT extracted by electrolysis?
Aluminium
Calcium
iron
Magnesium
Sodium
Correct answer is C
No explanation has been provided for this answer.
0.32
0.64
3.18
6.35
9.65
Correct answer is A
Recall that two faradays ( 2 X 96500 ) will be required to discharge 1 mole of a divalent ion like Cu.
2 X 96500 will deposit 63.5g of Cu
And 965C wiil deposit x-grams
CROSS MULTIPLY
(965 X 63.5) ÷ ( 2 X 96500)
= 0.3175
NECO Subjects
Aptitude Tests
Latest Jobs
Female Shop Manager needed in Abuja
Zonal Administrative Assistant at World Health Organization (WHO)
Officer - Payroll at MTN Nigeria
Supervisor - Warehouse at MTN Nigeria
Customer Services Representative at Tetra Pak
Community Engagement and Monitoring Assistant at World Health Organization (WHO)
Customer Service Representative at Eric Kayser
Training Manager at United Nigeria Airlines
Financial Controller at United Nigeria Airlines