Scientific method
6. jack wants to make his car look amazing to impress his new girlfriend. he
thinks shines-a-lot wax is the most effective car wax to use. he decides to
test 4 types of car wax including shines-a-lot. he cleaned the hood of his
car and removed the old wax. he measured four equal sections on the
hood of his car. each of the waxes was used to cover a section. an equal
amount of wax, the same type of rag, and equal buffing were used. jack let
it dry and came back 2 hours later to check. he noticed the square where
he used sparkle wax was the shiniest.
identify the problem, restate jack's hypothesis, and explain whether the
outcome of his experiment supports his hypothesis or not.

so here we go

atomic mass

239 + 1 = y + 134 + 3 combine like terms

240 = y + 137             subtract 137 from both terms

240 - 137 = y

103 = y

atomic number

94 = z +54 + 0

94 = z + 54               subtract 54 from both sides.

40 = z

answer

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 answer is true. hope it .