(APPLY YOUR KNOWLEDGE)
in 1951, a chemical company that manufactured fertilizer began dumping its waste in dinamata Bay.
apan The waste contained mercury that contaminated the ecosystem, making over 2.200 people
with mercury D oning Citizens suffered from high fever convulsions, psychosis, loss of consciousness
coma, and many times ending in death. Approximately 900 people died, as well as most of the birds and
somesticated animals in the area. Scientists investigating the tragedy concluded that people and an mas eating the fish had ingested mercury, which was causing the poisoning and sickness. After 12 years, the dumping was stopped

A. as elemental mercury moves through an aquatic ecosystem, it takes different chemical forms to
become methylmercury, which can then move through food chains. Explain the sequence of events
that take place.

when [oh-] is 10-5  m, and [h3o+] is 10-9  m, the poh is 5 and ph is 9. again in both cases the sum of ph and poh is 14. however, the hydrogen ion concentration is not always going to be equal to exactly 1 x 10 raised to a negative number. for example, we skipped over the value of 2.0 x 10-7.

metals are good conductor of electricity. it has free electrons on their surface. according to electron pool theory, each atom present in a metal crystal losses all of its valence electron and as a result a pool of free is form. these pool of electrons are free to move and   conduct electricity easily   while making metal as good conductor.

the correct answer is a. the ability of electrons to flow throughout the metal.

if it's not useful, feel free to report for mistake in answer.

the correct answer is b. a strong acid completely dissociates to its ions when dissolved in water. completely dissociates to and ions. a is incorrect because does not fully ionize to and ions and some remain as the compound . c and d are incorrect because, and do not fall into the category of bronsted lowry acids. a bronsted lowry acid is a proton donor and since both molecules do not have a proton to donate they are not bronsted lowry acids. likewise,   if we use the lewis acid definition, they cannot be acids. a lewis acid is an electron pair acceptor. both and have a complete octet so can not accept any electrons which disqualifies them as acids.