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Andreyy89
3 years ago
10

30 POINTS ASAP

Biology
1 answer:
Helen [10]3 years ago
7 0
Scientist combine-several well-tested techniques to find out the ages of fossils. The most important are Relative Dating, in which fossils and layers of rock are placed in order from older to younger, and Radiometric Dating, which allows the actual ages of certain types of rocks to be calculated. There is no way to calculate an "absolute" age. Relative Dating. 
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Select the correct answer.
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Redox reactions refer to a pair of reactions in which a particular oxidation is coupled to a corresponding reduction. Although n
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The Equations sort each listed half reaction as either an oxidation or a reduction.

Fe + CuSO4 + → FeSO4 + Cu

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Explanation:

For proper understanding of the concept of the Redox reaction, let us know the meaning:

Reduction- Oxidation or "redox" reactions occur when elements in a chemical reaction gain or lose electrons. This reaction causes an increase or decrease in oxidation numbers. The Half Equation Method is used to balance these reactions. The equation is separated into two half-equations, one for oxidation and one for reduction. For Example -

CuO + H2 → Cu +H2O.

In this redox reaction, CuO is getting reduced to Cu since Oxygen is getting removed.

Fe(s) + CuSO4(aq) → FeSO4(aq) + Cu(s) Oxidation state of Fe changes from 0 to +2 and oxidation state of Cu changes from +2 to 0.

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3 years ago
For a client with rib fractures and a pneumothorax, the health care provider (hcp) prescribes morphine sulfate, 1 to 2 mg/h, giv
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C reptiles hope this helps
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