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What mineral is it if it's pearly, black, copper penny scratches it
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Chemistry, 21.06.2019 15:50
Where are chemicals found at work? a. only in cleaning products b. only in carpets and paint c. in every area of work d. only in food preparation submit
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Astudent reacts 13 moles of iron with 21 moles of oxygen according to the following equation:
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Write the chemical formula for a compound that is made of an element from group 1 and an element from group 17
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Chemistry, 22.06.2019 19:30
Phosphorous can form an ion called phosphide, which has the formula p3β. this ion can form an ion called phosphide, which has the formula p3β. this ion properties very similar to those of pforms when a phosphorus atom loses three protonsis called a cationcontains 18 electrons
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What mineral is it if it's pearly, black, copper penny scratches it...
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