water Flashcards
1
Q
what is distilled water?
A
totally pure water
2
Q
why do we find pure water very rarely?
A
good solvent
3
Q
what does seawater contain?
A
sodium chloride
4
Q
what is sodium chloride?
A
table salts or other salts
5
Q
what does tap water contain?
A
dissolved salts
6
Q
how do u make pure water?
A
remove all the salts
7
Q
how is distilled water produced?
A
distillation boiling water
8
Q
how many stages are their in an experiment of dissolved salts?
A
3
9
Q
what degree does pure water melt on?
A
0 degrees
10
Q
what degree does pure water boil on?
A
100 degrees
11
Q
what do impurities change?
A
melting and boiling points
12
Q
what happens when a substance freezes?
A
turns from liquid to solid
13
Q
what happens to the particles?
A
come closer together
14
Q
what happens when water freezes?
A
particles move further apart from each other
