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- (A) if both sentences are true, (B) if both sentences are false, (C) if the first sentence is true but the second is false, and (D) if the first sentence is false but the second is true. 1. Radioactive wastes, like uranium, must be handled and disposed of according to special regulations designed to protect people and the environment. Nuclear power plants produce too much greenhouse gases due to the burning of uranium. 2. In the experiment on determining the dissolved oxygen concentration of a water sample, the compound used to acidify the sample was hydrochloric acid. An acidic solution will have a pH greater than 7. 3. Pure water has a slight blue coloration that goes deeper as the thickness of the sample increases. Water follows the temperature of its surrounding. 4. The solubility of oxygen in water increases at colder temperatures, and decreases at higher temperatures. DO can be measured in milligrams of oxygen (O2) per liter of water. 5. An atom is composed of three subatomic…13. Soru Complete the given reaction. Fe(s) + H2SO4(aq) + ........ ........ A) Fe (aq) + SO2(g) B) FeSO4(s) + H2(g) C) FeH2(aq) + H2(g) D) FeH2(aq) + SO2(g)M Apple Google Disney ESPN Yahoo! Biomedical Careers Program ☆ CATEG WHOS r B r SLIVET H₂ (9) + F2(g) → 2HF(g) PC15 (9) → PC13 (9) + Cl₂ (9) CO₂(g) + H₂(g) → CO(g) + H₂O(g) Apple iCloud Yahoo Images Bing Google Wikipedia Facebook Twitter D2L b G 3 2H₂O2 (1) → 2H₂O(1) + O2(g) prod03-cnow-owl.cengagenow.com 2CO2(g) + 5H2(g) → C2H2 (9) + 4H₂O(g) D2L VULLI CETURT JU D2L LITUNTUT T Clear All AS > 0 AS < 0 COWLv2 |... b too close to decide SISS LinkedIn The Weather Channel Yelp TripAdvisor C M G с G C VVIML. + 88 M
- You have a 11.5 mg sample of blood that contains various proteins. Hemoglobin is the only protein in the sample containing Fe. Hemoglobin contains 3.83% by mass of a compound called heme (C34H32FEN.O4, MW = 616.49 g/mol). You find that your 11.5 mg blood sample contains 10.9 micrograms of Fe. What is the mass percent of hemoglobin in your protein sample?4. K2SO4(aq) + Pb(NO3)2 (aq) -----> PbSO4(s) + KNO3(aq)5. Na2S(aq) + Cd(NO3)2(aq) -----> CdS(s) + NaNO3(aq)h Oxidation: Cr2+ → Cr³+ + e Reduction: Cu²+ + 2 e¯ → Cu Net: 2 Cr²+ + Cu²+ What is the standard potential, Eºnet ? Standard Reduction Potentials Eº net Reduction Half-Reaction E° (V) Co³+ + e- → Co²+ 1.82 Au³ + + 3e- → Au(s) 1.50 Pd²+ + 2 e- → Pd 0.987 Ag++ e- → Ag(s) 0.80 Fe³+ + e- → Fe²+ 0.771 → Cu(s) 0.52 → Cu(s) 0.337 → Cut 0.153 → H₂(g) 0.00 → Sn(s) -0.14 Cu++ e- Cu²++2 e- Cu²++ e- 2H+ + 2 e- Sn²+ + 2 e- Co²+ +2 e- Cr³++ e- Fe²+ +2 e- Cr³+ +3 e- Zn²++ 2 e- A1³+ + 3 e- → Cu + 2 Cr³+ = V →Co(s) -0.28 → Cr²+ -0.41 → Fe(s) -0.44 → Cr(s) -0.74 → Zn(s) -0.763 →Al(s) -1.66
- Ff.238.DSlideshow Arrange Tools Add-ons Help Ac 9 Background ▼ Transition Theme Layout 111 | 1 | 2 | 3 | 4 | 56789 2 *** Directions Match the items in column A with those in column B. Write the letter of each correct answer on the line. Column A Column B 1. substance is a solid A (aq) 2. reacts to produce B (g) 3. substance is a liquid C (1) 4. substance is a gas D (s) 5. used to separate two or more E + reactants F→> 6. substance is dissolved in water dd speaker notesCalculate the (a) electrical energy, (b) AG°, and (c)K of the reaction:
- De All chan 1. Why is the neutron to proton ratio so important? It determines the stability of the nucleus based on the shielding effect of the neutrons. The neutron to proton ratio describes a radioactive element's half-life. Scientists made up this concept because they wanted to create radiation. An atom's nucleus likes to have the same number of neutrons and protons, so knowing that ratio is important. 00:53:35 PREVIOUS 1 of 20 NEXT SAVECH,2, Zn(Cu) Et,0 CH,l,, Zn(Cu) Et,0student found a bottle of unknown origin in the basement of an "CAUTION—contains С₁H₁O.” No other A old house. The bottle was labelled information was given, but inside the bottle were some white crystals. The student took the bottle to a chemistry laboratory, where she analyzed the crystals with the help of the laboratory staff. C₁2H₁6O reacted with Br₂ in CCl4 adding one mole of Br, and forming C₁₂H₁OB2₂. When a sample of C₁₂H₂O was reacted with O3 followed by Zn/H₂O, two different samples, J and K, were obtained. Compound J had a molecular formula of C.HgO₂, and its NMR is shown below. Compound K had a molecular formula of C₂H₂O, and it could be oxidized to compound L, with a molecular formula of C₂H₂O₂. The IR spectrum of L showed a very wide, strong band centred around 3000 cm*¹. The NMR spectrum of L showed only two different absorptions: a doublet (6H) at 0.9 ppm and a septet (1H) at 3.6 ppm. There was also a singlet (1H) off the scale at 11.8 ppm. students, deduce possible…