Posted by anne on Monday, January 26, 2009 at 8:57pm.
1) Instead of using the word "random",is it acceptable to say particles in a liquid move about in "different" directions?
I think the alternative wording is fine.
2) Why does ice have a higher density than water vapour? Is it because ice has a greater mass in a fixed volume?
Yes, because water expands when it freezes.
3) The statement "Particles in a gas are lighter than particles in a solid." is incorrect. Is it because a particle in a gas has the same mass as a particle in a solid and the difference is that a solid has more particles than a gas?
If the particles in the gas and the solid are the same, of course they have the same mass. I think the word you are looking for is that the solid is more dense than the gas.
Related Questions
Science-Chemistry - 1)Fill in the blanks. In a liquid, particles are ...
chemistry - I read in a book that gas particles move rapidly in all directions. ...
Chemistry - As a substance goes from a solid to a liquid, the particles move ...
Physics - An electron and a proton execute uniform circular motion in the ...
Physics - An electron and a proton execute uniform circular motion in the ...
Science - I need help filling this blank. The difference between a "cool&...
Physics - Three particles have identical masses and identical inital velocities...
Science - Which of the foolowing occurs when a mass of air rises into the ...
Science 8R - help!!!!!!!!!!!!!!!!! (anyone????) - Homework - Draw a graduated ...
Science - How is the arrangement of particles in liquid mercury similar to the ...
For Further Reading
