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Answers by Mtotschnig

Answers by Mtotschnig
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When you burned copper, the product copper oxide appeared on the wire. Besides copper, the other reactant is oxygen, O2 . Explain how you know it must be oxygen. Where did the oxygen come from?
answered Jan 26, 2018
3 votes
62.8k views
Tara is the editor of the school newspaper. She tries to devote about 1/2 of the paper to news, 1/3 to pictures, and the remainder to advertising. About how much of the paper is devoted to news and pictures?
answered Aug 12, 2017
3 votes
128k views
Why do the colorado river, rio grande, nile river, and yellow river now slow to a trickle or run dry before reaching their deltas?
answered Mar 4, 2017
3 votes
86.3k views
In the 1970s, the island of Nauru had one of the highest per capita incomes in the Oceania region due to extensive _______ mining A. copper B. phosphate C.gold D. nickel
answered Jan 31, 2015
5 votes
37.9k views
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