by Sunday | Apr 16 | Chemistry NECO
A. hydrogen, oxygen B. Hydrogen, tetraoxosulphate (VI) ion C. oxygen, hydrogen D. sulphur, hydrogen E. sulphur, oxygen Correct Answer: Option C – oxygen, hydrogen
by Sunday | Apr 16 | Chemistry NECO
A. the electrons at the outermost shell is partially filled B. the number of protons equals the number of electrons C. the outer electron shell is completely filled D. there are equal number of protons and neutrons in its nucleus E. there are no elections at the...
by Sunday | Apr 16 | Chemistry NECO
A. AlF3 B. BF2 C. CF4 D. CsF E. NaF Correct Answer: Option E – NaF
by Sunday | Apr 16 | Chemistry NECO
A. AgCl B. CaCO3 C. K2SO4 D. NaOH E. NH4CI Correct Answer: Option E – NH4CI
by Sunday | Apr 16 | Chemistry NECO
A. distance between particles of the reactants increases B. frequency of collision of particles is lower C. particles of the reactants gain energy and move faster D. reactants from a complex which decomposes rapidly E. reactants occupy a higher energy level Correct...