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Author Archives: Anonymous

Given the electronegativity values of H (2.1), N (3.0), and…

Given the electronegativity values of H (2.1), N (3.0), and O (3.5), which of the following molecules have polar bonds?

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The ___________________________ determines the firing delay…

The ___________________________ determines the firing delay patterns for phased array systems.

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What is the most common way to improve the signal-to-noise r…

What is the most common way to improve the signal-to-noise ratio? 

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A byte is a group of _________ bits of computer memory.

A byte is a group of _________ bits of computer memory.

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Which of the following is a disadvantage of increasing the a…

Which of the following is a disadvantage of increasing the acoustic power?

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If the pressure of 50.0 mL of oxygen gas at 100°C increases…

If the pressure of 50.0 mL of oxygen gas at 100°C increases from 735 mm Hg to 925 mm Hg, what is the final volume? (Assume temperature remains constant.)

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What is the mass of potassium iodide (166.00 g/mol) that yie…

What is the mass of potassium iodide (166.00 g/mol) that yields 0.500 g of lead(II) iodide (461.0 g/mol) precipitate?             __Pb(NO3)2(aq) + __KI(s) → __PbI2(s) + __KNO3(aq)

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What is the mass of bismuth carbonate (597.99 g/mol) that de…

What is the mass of bismuth carbonate (597.99 g/mol) that decomposes to release 50.0mL of carbon dioxide gas at STP?              __Bi2(CO3)3(s)      __Bi2O3(s) + __CO2(g)

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How many moles NO gas react with 1 mole O2 gas according to…

How many moles NO gas react with 1 mole O2 gas according to the following balanced chemical equation?                                            2 NO(g) + O2(g)  2 NO2(g)

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Which of the following statements are correct regarding the…

Which of the following statements are correct regarding the types of studies required to demonstrate the safety and efficacy of line extensions or new dosage forms or strengths of a registered medicine.

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