Define a free radical and explain why it is so reactive

What will be an ideal response?


A free radical is an atom or molecule which has at least one electron which is not paired with another electron. It is so reactive because the natural state of matter is for that unpaired electron to form a bond.

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Agronomic traits increase crop yields or make crops less expensive to grow

Indicate whether the statement is true or false

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Technician A says that a green 9-pin J1939 DLC must be used to connect to a post-2014 truck powertrain data bus.  Technician B says that the green 9-pin J1939 DLC cannot connect to a pre-2103 data bus. Who is correct??

A. ?Technician A only B. ?Technician B only C. ?Both A and B D. ?Neither A nor B

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You wish to evaluate four independent projects that all have a 10-year life at MARR = 15% per year. Preliminary estimates for first cost, annual net income, and SV have been made.


(a) Accept or reject each project using a present worth analysis. On your spreadsheet, include the logical IF function to make the accept/reject decision.
(b) The preliminary estimates have changed for projects A and B as shown below. Use the same spreadsheet to reevaluate them.

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When an emitter follower amplifier is saturated,

A) VCE ? 0 V, VE ? 0 V B) VCE ? 0 V, VE ? VCC C) VCE ? VCC, VE ? VCC D) VCE ? VE, VCC ? 0 V

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