Is CO2 a strong acid, weak acid, strong base, weak base or molecular compound?

Significant figures are digits read directly from the measuring instrument plus one more digit, which is __ by the observer.

What is the correct lewis structure for chloroform chcl3

Select all of the statements which are true. electrons are located in shells or orbits around the atom. electrons orbit slowly around the atom. electrons travel in one flat path around the nucleus of an atom. the valence of an atom is determined by the number of electrons in the atom's outermost shell.