Answer: 2 Na (s) + Cl(g) -> 2 NaCl (s)
Explanation:
MA= output force/ input force
MA= 100N/20N
MA= 50
2Cu(s) + O2(g) --> 2CuO(s)
Answer:
D. when the number of moles of acid is exactly equal to the number of moles of base.
Explanation:
<em>Regarding options A. and E</em>., pKa and pKb would only be taken into consideration if the titrations were of <em>weak</em> acids and bases. However it is possible to have a titration of monoprotic acids and bases with strong acids and bases.
Another way of looking at the answer is identifying <em>which one best describes the equivalence point</em>.