In the previous posts, we have discussed on ACIDs in terms of their definitions and properties. Today we will continue by looking into the Chemical Definitions of BASEs in ‘O’ Level Chemistry.
A BASE is a substance that reacts with an ACID to form a SALT & WATER only.
Bases are Hydroxides (OH-) or Oxides (O2-) of metals including ammonium hydroxide.
Acid + Base –> Salt + Water (Neutralization Reaction)
E.g. CuO(s) + H2O(aq) –> CuSO4(aq) + H2O(l)
E.g. Mg(OH)2(s) + 2HNO3(aq) –> MgNO3(aq) + H2O(l)
Let’s try out an exam-based questions to see how much you understand.
Quick Check 1:
Consider the following reactions which involve reacting lead(II)oxide (PbO) and lead(IV)oxide (PbO2) with acids:A. PbO(s) + 2HNO3(aq) –> Pb(NO3)2(aq) + H2O (l)
B. PbO2(s) + 2HCl(aq) –> PbCl2(s) + 2H2O(l) + Cl2(g)Which of the above reactions is NOT a Neutralization reaction?
PS: Do leave your suggested answers in the “Comments Section” directly below this post.
PPS: This post belongs to a series of blogposts that is associated with Secrets of “Acids, Bases & Salts and Qualitative Analysis revelaed”
option 2
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tillisha Reply:
June 8th, 2009 at 8:29 am
an acid reacts with a base to form a salt and water in neutralization reaction
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i think the answer is B. because with neutralization reaction a base reacts with a acid to form water and a salt.
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i need some help with this chemistry question that i hpoe some one can solve for me: to find the concentration in moldm3 of a solution containing 0.015 mole HCL in 25cm3 of solution.
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netrztion reaction always is defined as being in the domain of the given equation. Acid+Alkali—>Salt +Water hence deduced that option no.2 is incorrect.
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B
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