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3 answers

Calcium chloride
Bc isn't an element, so I'm not sure
Lead Chromate
Carbonic Acid

2007-10-29 14:29:38 · answer #1 · answered by Trackfish 2 · 0 0

ca is calcium cl2 is 2 lots of chlorine bc4 is unknown to me pb is led it is 2 lots of led,led is toxic(interesting fact) h2 is hydrogen and 2 lots of it co 3 is 3 lots of cobalt

2007-10-29 21:30:34 · answer #2 · answered by Anonymous · 0 0

Calcium chloride

Boron carbide (should be B4C3)

Lead chromate

Carbonic acid

2007-10-29 21:27:19 · answer #3 · answered by steve_geo1 7 · 0 0

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