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  4. 1.what is the percentage of oxygen in POP (CA=40 S=32 O=16 H=1) 2.Zn 2HCl-->Zncl2 H2...

1.what is the percentage of oxygen in POP (CA=40 S=32 O=16 H=1) 2.Zn 2HCl-->Zncl2 H2...

1.what is the percentage of oxygen in POP (CA=40 S=32 O=16 H=1)
2.Zn 2HCl-->Zncl2 H2
from the above 6.5g of zinc is added to o.2M800cm³ of HCL. The volume of hydrogen gas liberated is ________
3. An element X has three isotopes ⁴²X,⁴³X and ⁴⁵X in ratio 2:2:3. The relative atomic mass of X is _______?
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Asked by Gbolahan on 25th February, 2022
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WAEC May/June 2024 - Practice for Objective & Theory - From 1988 till date, download app now - 99995
WAEC Past Questions, Objective & Theory, Study 100% offline, Download app now - 24709
WAEC offline past questions - with all answers and explanations in one app - Download for free
Post-UTME Past Questions - Original materials are available here - Download PDF for your school of choice + 1 year SMS alerts
WAEC Past Questions, Objective & Theory, Study 100% offline, Download app now - 24709
WAEC May/June 2024 - Practice for Objective & Theory - From 1988 till date, download app now - 99995
WAEC offline past questions - with all answers and explanations in one app - Download for free
Post-UTME Past Questions - Original materials are available here - Download PDF for your school of choice + 1 year SMS alerts