A compound is 2% H, 32.7% S, and 65.3% O by mass. What is the subscript on the O in the empirical formula for this compound?

Who came up with the atomic theory?

The air in a balloon is heated up. Give two effects this has on the air particles.

What is a molecular compound

Which is the number of atoms in 4.5 moles of Hg, correctly written in scientific notation with the correct number of significant figures?

Sal and Marie were experimenting with bar magnets in science class, picking up chains of paper clips. Where should they expect the magnetic force of the bar magnet to be the strongest and pick up the most paper clips?

In a system for separating gases a tank containing a mixture of hydrogen and carbon dioxide is connected to a much larger tank where the pressure is kept very low.

What formation is favored by the addition of heat.

10+10= 123+456= 789+101112

Why are water storage tanks usually built on towers or placed on hilltops?

What does hydrochloride mean?