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1.15 g of a metallic element reacts with 300 cm3 of oxygen at 298 K and 1 atm pressure, to form. an oxide which contains O2– ions. What could be the identity of the metal? A calcium. B magnesium. C potassium.
asked
Dec 22, 2017
Chemistry
high-school
1
answer
0
votes
2.7k
views
Whats the similarities between observation and data?
asked
Oct 12, 2017
Biology
high-school
1
answer
4
votes
165k
views
Is/are the most concentrated form of energy. Fast proteins carbohydrates
asked
Apr 1, 2017
Biology
high-school
2
answers
4
votes
103k
views
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