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Hydrogen gas and nitrogen gas combine to form NH3. If there are 16.0 grams of hydrogen gas available, what is the mass of nitrogen gas needed for the reaction to go to completion?

Aluminum reacts with copper(II) chloride in a single displacement reaction. In the lab, Suzy chemist weighs out 18.0 g of aluminum to produce 23.4 g of copper. 1. Write the balanced chemical equation. 2.What is the theoretical yield of copper? 3.What is the actual yield of copper? 4.What is the percentage yield of copper in this reaction? 5. In your opinion has Suzy improved throughout the semester as a chemist, explain why?

Who developed the four-field approach to anthropology in the U.S. and is therefore known as the “Father of American anthropology”?  Last name only.

Escuchar las recomendaciones del doctor: [q8]

Tener falta de atención: [q5]

A beam has dimensions of b = 16 in., h = 26 in., and d = 23.5 in. and is reinforced with 3 No. 5 bars. The concrete strength is 10,000 psi, and the yield strength of the reinforcement is 60,000 psi. If the depth of the compressive stress block is a = 0.410294 in. and the strain in the reinforcement is εs = 0.108688, determine the strength φMn for this beam. Assume the transverse reinforcement is not spirals.

“Yo trabajo muchas horas y voy a la cama muy tarde”. [q34] siete horas por noche, como mínimo.

Tengo una pequeña herida en la mano. Una [q18].

4. The image a bellow represents a NON-attenuated corrected PET image.

_______ is the ability of a section to deform beyond its yield point without a significant loss of strength.