What did J. J. Thomson’s experiments with cathode ray tubes imply about the mass of an electron? Electrons are many thousand times larger than the nucleus and negatively charged.
Electrons are many thousand times smaller than the nucleus and positively charged.
Electrons are many thousand times smaller than the nucleus and negatively charged.
Electrons are many thousand times larger than the nucleus and possess no charge.

What approach is required to balance the objectives of sustainable development? balancing the objectives of sustainable development requires a(n) .

Temperature is _related to the average kinetic energy of a gas. inversely directly not disproportionally

Answer asap need by wednesday morning explain how a buffer works, using an ethanoic acid/sodium ethanoate system including how the system resists changes in ph upon addition of a small amount of base and upon addition of a small amount of acid respectively. include the following calculations in your i. calculate the ph of a solution made by mixing 25cm3 0.1m ch3cooh and 40cm3 0.1m ch3coo-na+. [ka = 1.74 x 10-5 m] ii. calculate the ph following the addition of a 10cm3 portion of 0.08 m naoh to 500cm3 of this buffer solution. iii. calculate the ph following the addition of a 10cm3 portion of 0.08 m hcl to 200cm3 of the original buffer solution.