How many particles are in 8.00 L of O2 at 15°C and 720. mm Hg. (use the coefficient - 1 decimal place in the first blank and the superscript in the second blank)
x10^

describe matter a earth

i don't see a text, but i am gonna assume this *orbit* the curved path, usually elliptical, described by a planet, satellite, spaceship, etc., around a celestial body, as the sun.

answersilicon (si); oxygen (o);

im doing test rn im going with 2 but ill give answer if itss wrong,   : )