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Chemistry, 27.08.2019 21:00, cupcake3103670
As a person pushes a box across a for the energy from the person's moving arm is transferred to the box, and the box
and for become warm during this process, energy is
increased
conserved
destroyed
decreased
created
![answer](/tpl/images/cats/otvet.png)
Answers: 1
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Chemistry, 21.06.2019 16:10, amuijakobp78deg
Agas mixture with a total pressure of 745 mmhg contains each of the following gases at the indicated partial pressures: co2, 245 mmhg ; ar, 119 mmhg ; and o2, 163 mmhg . the mixture also contains helium gas. part a what is the partial pressure of the helium gas? phe p h e = nothing mmhg request answer part b what mass of helium gas is present in a 10.2-l sample of this mixture at 283 k ? m m = nothing g request answer
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Chemistry, 22.06.2019 02:50, giiffnlojd
Using a value of ksp = 1.8 x 10-2 for the reaction pbcl2 pb+2(aq) + 2cl -(aq). if the value of ksp was determined to be only 1.2 x 10-2: too much solid has dissolved. additional precipitate is forming. the solution is unsaturated. the ions are now combining to reduce their concentrations.
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As a person pushes a box across a for the energy from the person's moving arm is transferred to the...
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