What is the mass of a 1.68-l sample of a liquid that has a density of 0.921g/ml?

When a theory is disproved by further evidence, which of the following occurs?

What's the chemical formula for potassium sulfide

The intrinsic solubility of sulfathiazole, an old antimicrobial, is 0.002 mol/l. it is a weak acid and its pka is 7.12. what is the ph of the saturated solution of sulfathiazole in pure water?

In a laboratory where the air is 22oC, a steel cylinder at 100. oC is submerged in water at 40. oC. In this system, heat flow from (1) both the air and the water to the cylinder (2) both the cylinder and the air to the water (3) the air to the water

The reaction above represents CuSO4 + NaOH = Cu (OH) 2 + Na2SO4

Why is it important that scientific knowledge changes?

How many formula units are there in 2.3g of NH4SO2

In a cooking context, which of the following materials is the best heat conductor? A. Any dense liquid B. Iron C. Gas D. Glass

When you open a bottle of soda, bubbles of carbon dioxide start appearing. Is this a chemical or physical change and why?

Al2 (SO3) 3 what are the number of atoms