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Students answers to the question,

Which metal presents the biggest problem as a water pollutant?

6th period

Student

Chromium

and

Tin

6282

Helium

and

Antimony

6743

Lithium

and

Cesium

6380

Beryllium

and

Barium

6765

Sodium

and

Tin

6288

Magnesium

and

Cerium

6384

Aluminum

and

Mercury

6539

Potassium

and

Platinum

6712

Calcium

and

Tin

6394

Scandium

and

Mercury

6296

Titanium

and

Lead

6406

Beryllium

and

Platinum

6764

Chromium

and

Terbium

6723

Manganese

and

Mercury

6713

Iron

and

Tin

6589

Cobalt

and

Mercury

6593

Nickel

and

Platinum

6774

Copper

and

Lead

6476

Zinc

and

Lutetium

6726

Gallium

and

Lead

6782

Germanium

and

Chromium

5727

Rubidium

and

Tungsten

6615

Strontium

and

Chromium

3834

Scandium

and

Tin

6729

Zirconium

and

Iridium

6756

Cadmium

and

Platinum

6643

Molybdenum

and

Gold

6757

Copper

and

Mercury

Cadmium

and

Thallium

Copper

and

Lead

Scandium

and

Bismuth

Silver

and

Chromium

Cadmium

and

Beryllium

Beryllium

and

Lead