大师作文网Science questions`
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Science questions`
i got a porject` and i don't know how to do it ..thanks for helping than~
Understanding Concepts\.
1.Draw and lable a series of diagrams to shaw the sequence of events that occurs when a suger cube id dropped into water.
a.) how does the particle theory explain how a solute dissolves in a solvent?
b.) Based on the particle theory,why would a substance dissolve in one solvent,but ont in another?
i got a porject` and i don't know how to do it ..thanks for helping than~
Understanding Concepts\.
1.Draw and lable a series of diagrams to shaw the sequence of events that occurs when a suger cube id dropped into water.
a.) how does the particle theory explain how a solute dissolves in a solvent?
b.) Based on the particle theory,why would a substance dissolve in one solvent,but ont in another?
2 .a)The solute is placed in the solvent and the concentrated solute slowly breaks into pieces.
b)The molecules of the solvent begin to move out of the way and they make room for the molecules of the solute.Example:The water has to make room for the sugar molecules.
c)The solute and solvent interact with each other until the concentration of the two substances is equal throughout the system.The concentration of sugar in the water would be the same from a sample at the top,bottom,or middle of the glass.
b)The molecules of the solvent begin to move out of the way and they make room for the molecules of the solute.Example:The water has to make room for the sugar molecules.
c)The solute and solvent interact with each other until the concentration of the two substances is equal throughout the system.The concentration of sugar in the water would be the same from a sample at the top,bottom,or middle of the glass.