a. A mixture of tow gaseous elements undergoes a chemical reaction, forming a ga

Question

a. A mixture of tow gaseous elements undergoes a chemical reaction, forming a gaseous compound. b. A mixture of two gaseous elements undergoes a chemical reaction, forming a solid compound. c. A mixture of two gaseous elements undergoes deposition. d. A mixture of two gaseous elements condenses. QUESTIONS AND PROBLEMS States of Matter Concept Review 1.7. In what ways are the arrangement of water molecule in ice and liquid water similar and what ways are they different? 1.8. What is in the space in the between the particles that make up a gas?

Explanation / Answer

1.7].The relaationship between solid and liquid water is very interesting and most notable for being the only compound in which the solid is less dense than the liquid! (A handful of elements also do this: Be, Ga, Ge.) The basic crystal structure of both the solid and the liquid is a cube. In ice, the water molecules take up positions at the corners of these cubes, and the cubes themselves are hollow. Being a solid, the molecules are locked into this arrangement because they don't have enough energy to move.But, add a little heat and give those molecules some energy to move around, and now some of those molecules begin to move inside of the hollow cubes. This is the secret of the change in density: filled cubes of liquid water are more dense than empty ones of the ice. In the liquid, the molecules are always moving: from a corner to inside the cube to another corner to another corner...

1.8].Particles of gas have the largest space out of solids and liquids

Vacuum.

Seriously, that's what a vacuum is - it's the space between atoms. In a solid it's quite small (though still vastly hugely enormous compared to the size of an atom) but in a gas it's really really big.

The great majority of everything (except neutronium and the like) is mostly not actually there at all - it's just space with a few atoms dotted here and there.

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