Chemistry, 16.03.2020 21:27 xoxonaynay
Molten solder flows between the two base metals being soldered because . A. the atmospheric pressure pushes it in B. of capillary action C. there are no surface pores in the base metal D. the tubing surface melts and the pressure differential forces it in
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Chemistry, 23.06.2019 07:00
Write a hypothesis that answers the lesson question, “while observing a chemical reaction, how can you tell which reactant is limiting? ” hypothesis: if a substance is the limiting reactant, then . . because . .
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Chemistry, 23.06.2019 16:00
Be sure to answer all parts. the catalytic destruction of ozone occurs via a two-step mechanism, where x can be any of several species: (1) x + o3 → xo + o2 [slow] (2) xo + o → x + o2 [fast] (a) write the overall reaction. o3 + o → 2 o2 o3 + xo → x + 2 o2 xo + x + o3 + o → xo + x + 2 o2 x + o3 → xo + o2 (b) write the rate law for each step (using k for the rate constant). reaction 1: reaction 2: k[x][o2] k[xo][o2] k[x][o3] k[xo][o3] k[xo][o2] k[x][o] k[x][o2] k[xo][o] (c) x acts as a and xo acts as a catalyst intermediate intermediate catalyst (d) high-flying aircraft release no into the stratosphere, which catalyzes this process. when o3 and no concentrations are 3 ă— 1012 molecule/cm3 and 9.9 ă— 109 molecule/cm3, respectively, what is the rate of o3 depletion? the rate constant k for the rate-determining step is 6 ă— 10â’15 (cm3)2/moleculeâ·s. give your answer in scientific notation. use one significant figure in your answer. ă— 10 molecule/s
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Chemistry, 23.06.2019 19:00
X-rays are used instead of visible light because x-rays have shorter than visible light, allowing them to produce images of much greater detail. a) energies b) frequencies c) speeds d) wavelengths
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Chemistry, 23.06.2019 21:20
A. explain, in terms of particles, why nacl(s) does not conduct electricity.
Answers: 1
Molten solder flows between the two base metals being soldered because . A. the atmospheric pressure...
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