Alpha particles (He24(He24 (\ce{^4_2He}, also represented by the symbol α24)α24)\ce{^{4}_{2}\alpha}) are high-energy helium nuclei

1eV=1.602×10−19J

making litmus useless as an indicator of the equivalence point.

when small amounts of a strong acid or a strong base are added

“During peace time a scientist belongs to the World, but during war time he belongs to his country.”

mp = −9.3°C; bp = 21.2°C

when t-butyl bromide is hydrolyzed in an aqueous acetone solution containing OH− ions rather than in aqueous acetone alone, the differential rate law for the hydrolysis reaction does not change. In contrast, for methyl bromide, the differential rate law becomes

A greater change occurs in [A] and [B] during the first 10 s interval, for example, than during the last, meaning that the reaction rate is greatest at first.