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2006-09-02 07:31:42 · 7 answers · asked by Cali 1 in Science & Mathematics Chemistry

Also can physical or chemical change (or both) be used to break the water and silicon dioxide down further?

2006-09-02 07:43:04 · update #1

7 answers

sedimentation and filtration

sand is alot heavier than water so the sand will settle down to the bottom. just shake it up and let the sand sink to the bottom and pour off the water.

you can also filter out the water through a membrane with pore size smaller than the sand allowing the water to pass though and the sand to stay behind.

2006-09-02 07:34:06 · answer #1 · answered by Anonymous · 0 0

Heat it, and collect the steam in another container until all the water is boiled away.

Filter the water through using a piece of fine cloth (or something similar) for a filter.

Drop the mixture in a fine stream such that the stream of water sand mixture falls near a source of a static charge. Some of the sand will fall straight. The water (and some sand trapped by the surface tension of the water) will be deflected to another site which will recirculate the water through the same process until all the sand is filtered out.

put the mixture in a vacuum chamber and pull a vacuum on it, the water will boil off due to released pressure.

Drink it. Your body can and will use the water, not the sand. Hopefully this mixture is not a large amount

Freeze it. Pulverize the pieces while keeping it frozen. Spin the pieces, still frozen in an agitating centrifuge. Ice is less dense than sand and will settle on the top. Separate the ice from the sand and allow them to get back to room temperature.

2006-09-02 07:47:07 · answer #2 · answered by SteveA8 6 · 0 1

A. Pump the mixture through a hydro cyclone the clear water comes out the top and the sand falls to the bottom of the cone and then into a collecting sump. ...... Or...
B. distillation

2006-09-02 07:44:01 · answer #3 · answered by cycloneweaver.com 3 · 0 0

The mose efficient and easiest methods are filtration and sedimentation.

2006-09-02 07:37:04 · answer #4 · answered by Anonymous · 0 0

Evaporation and filtration

2006-09-02 07:36:37 · answer #5 · answered by IPuttLikeSergio 4 · 0 0

Distillation, filtration, centrifuge. (I know you asked for only two, sorry.)

2006-09-02 07:45:01 · answer #6 · answered by sluggo1947 4 · 0 0

1-sedimentation
2-vapourization

2006-09-02 13:11:29 · answer #7 · answered by fatma m 2 · 0 0

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