Webchemistry The ozone molecules in the stratosphere absorb much of the ultraviolet radiation from the sun. The temperature of the stratosphere is -23^ {\circ} \mathrm {C} −23∘C, and the pressure due to the ozone is 1.4 \times 10^ {-7} \mathrm {atm} 1.4×10−7atm. WebAbeka Basic Chemistry Test 2 What is the value of Avogadro's number? Click the card to flip 👆 6.022•10^23 Click the card to flip 👆 1 / 38 Flashcards Learn Test Match Created by RhomanHoliday Terms in this set (38) What is the value of …
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WebCalculate the standard enthalpy of reaction for the reaction 2 Na(s)+2 H₂O(l)→2 NaOH(aq)+H₂(g). Standard enthalpies of formation are -285.8 kJ/mol for H₂O(l) and -470.11 kJ/mol for NaOH(aq). Q ice=mc∆T=(20.0g)(2.06 J/[g∙°C])(50.0°C)=2060 J Q fus=m∆H fus=(20.0 g)(334 J/g)+6680 J Q total=Q ice+Q fus=2060 J+6680 J=8740 J=8.74 kJ WebAbeka Chemistry Test 11. 59 terms. PapaGreg Teacher. Sets found in the same folder. Abeka Chemistry Quiz 13. 10 terms. PapaGreg Teacher. Abeka Chemistry-Quiz 17. 10 terms. kmrgal01. Abeka Chemistry-Quiz 21. 10 terms. kmrgal01. Abeka Chemistry Test 7 Study Guide. 71 terms. JeremyWalker999. Other sets by this creator. stannylation reaction
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WebHow many carbon atoms does the hydrocarbon 2-butene contain? ideal gas law Which law relates the volume, pressure, temperature, and number of moles of a gas? shift right In a reversible chemical reaction represented A + B ⇌ AB, how would adding more of substance A to the system affect the equilibrium? amine WebAbeka Chemistry Test 9 (Nine-weeks Exam) 60 terms. Mysterious_Siren. Abeka Chemistry Quiz 23. 10 terms. PapaGreg Teacher. Abeka Chemistry-Quiz 22. 10 terms. kmrgal01. Abeka chemistry appendix quiz N. 5 terms. BigCountry525. Other sets by this creator. Anatomy Block 4 Posterior Forearm Innervations. 6 terms. sarah_tarah. … Web6.022 X 10²³ 4 mol C₇H₈: 2 mol H₂O Which of the following mole ratios cannot be derived from the equation 2 C₇H₈ (g)+ 9 O₂ (g) → 7 CO₂ (g)+ 4 H₂O (g)? Molecular mass What is the sum of the atomic masses of all the atoms in a molecule? What is NH₄⁺ ammonium ion What is Fe²⁺ iron (II) ion What is NO₃⁻ nitrate ion What is SO₄²⁻ sulfate ion st anny food