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lesantik [10]
3 years ago
9

URGENT!!!!*****

Chemistry
1 answer:
MatroZZZ [7]3 years ago
4 0
Chemical should be the answer hope I helped
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What does index fossil mean?
marysya [2.9K]

An index fossil is a  fossil that is useful for dating and correlating the strata in which it is found.

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Which type of reaction is represented by this graph?
enot [183]

Answer:  

D. Exothermic.  

Explanation:  

Hello there!

In this case, since the potential energy versus reaction progress diagrams are related to the energetic profile of a chemical reaction, we can set the initial point at the beginning of the reaction as the energy of the reactants and the final point as the energy of the products.

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When you burned copper, the product copper oxide appeared on the wire. Besides copper, the other reactant is oxygen, O2 . Explai
NISA [10]

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