Avogadro stated that all gases at STP occupied 22.4 L. Suppose the density of air at STP is 1.285 g/L. Which of the following cannot be used to fill a balloon that will float in air at STP?

What is the mass of 200 kg object

are chemical and physical properties of the new substance the same or diffrent after a chemical reaction

What is the average velocity from 0 seconds to 8 seconds?

What do you call each of the following changes of state: a. Solid to liquid b. Liquid to gas c. Gas to solid d. Solid to gas e. Liquid to solid f. Gas to liquid This is regarding Latent Heat Terminology

Name one danger associated with blizzards

Chemicals that are able to reduce activation energy in a reaction and speed the reaction rate are a. inhibitors. b. reactants. c. products. d. catalysts.

Lead had been used in plumbing and other products since ancient times. How have chemists contributed to our understanding of lead today? A. They have shown how lead can build up and cause damage in the human body. B.

When converting from moles to molecules OR molecules to moles you use what quantitative value?

Whose model of the atom did J. J. Thomson prove to be incorrect with his Cathode-Ray tube experiments? Neils Bohr John Dalton Erwin Schrodinger James Chadwick

Which soil cannot be rolled into balls or clumps