sulfric acid has the chemical formula H2SO. A certain quantity of sulfuric acid contains 4.89 x 10^25 atoms of oxygen. How many moles of sulfuric acid is in the sample?

i don't know people like to fight everywhere rip.

answer:

technetium is the most reactive. this is followed by silver. the least reactive out of these three elements is strontium.

it's c (engineer's do their work with mechanical stuff not on any living being)

weight of any object is given by

w = m*g

where m is mass of the object and g is the acceleration due to gravity.

for earth the value of g is 9.8 m/s^2 so

w=117.6 n m=12 g=?

117.6=12g => g=9.8 m/s^2

which is the force of gravity on earth.