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62 Ammonium dinitramide (ADN), NH4N(NO2)2, was considered as a possible replacement for aluminium chloride as the oxidizer in the solid fuel booster rockets used to launch the space shuttle. When detonated by a spark, AND rapidly decomposes to produce a gaseous mixture of N2,O2, and H2O. (This is not a combustion reaction. The ADN is the only reactant.) The reaction releases a lot of heat, so the gases are initially formed at high temperature and pressure. The thrust of the rocket results mainly from the expansion of this gas mixture. Suppose a 2.3-kg sample of ADN is denoted and decomposes completely to give N2,O2, and H2O. If the resulting gas mixture expands until it reaches a temperature of 100°C and a pressure of 1.00 atm, what volume will it occupy? Is your answer consistent with the proposed use of ADN as a rocket fuel?
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- 4.60 Why are fuel additives used?arrow_forwardIn 1995, Mario Molina, Paul Crutzen, and F. SherwoodRowland shared the Nobel Prize in chemistry for their work onatmospheric chemistry. One of several reaction sequences pro-posed for the role of chlorine in the decomposition of strato-spheric ozone is (1) Cl(g) +O3(g)→ ClO(g) +O₂(g) (2) ClO(g) +ClO(g)→ Cl₂O₂(g) (3) Cl₂O₂→ (g)2Cl(g)+ O₂(g).Over the tropics, O atoms are more common in the stratosphere:(4) ClO(g) +O(g)→ Cl(g) +O₂(g).(a) Which, if any, of these are oxidation-reduction reactions?(b) Write an overall equation combining reactions 1–3arrow_forwardHw.60.arrow_forward
- • Glass is formed by heating sand (silica) with sodium carbonate or calcium carbonate. The molten liquid cools into a hard and transparent material. The addition of metal oxides alters the color of the resulting glass. • Beta-titanium is composed primarily of titanium and heat-treated with a mix of metals such as aluminum and vanadium. The resulting material has high strength and corrosion resistance, and is used in dental implants and aircraft parts. • Iron (II) sulfide is formed by heating metallic iron and elemental sulfur. This results in the formation of a non-magnetic all-black mineral. Given the three statements above, which of the following is TRUE? Select one: O a. Only one material is classified as a homogeneous mixture. O b. Only one material is classified as a pure substance. All materials are classified as homogeneous mixtures. O c. O d. All materials are classified as pure substances. میarrow_forwardPart 1 A student carried out an investigation to observe the effect of changing concentration of sulfuric acid on the breakdown of calcium carbonate (marble) chips. They changed the concentration of the acid between each test but kept the size of the marble chips constant. The full equation for the reaction and a graph of the overall results can be seen below. CaCO3(s) + H₂SO4(aq) → CaSO4(aq) + CO2(g) + H₂O (1) a) b) Rate of Reaction * Concentration of Acid (mol dm³) Explain, using collision theory, why the student obtained these results, and state what they could conclude about the effect of changing concentration of acid on the rate of reaction between calcium carbonate and sulfuric acid. If the student had ground up the calcium carbonate chips into a powder and run the tests again, what would you expect to happen to the rate of reaction? Briefly explain why by applying collision theory. Part 2 The student ran the same experiment, but this time changed the temperature, increasing it…arrow_forwardWetlands can play a significant role in removing fertilizer residues from rain runoff and groundwater; one way they do this is through denitrification, which converts nitrate ions to nitrogen gas: 2NO3-(aq) + 5CO(g) +2H+(aq) ----> N2(g) + H2O(l) +5CO2(g) Suppose the gas mixture produced by the decomposition reaction is trapped in a container at 17.0°C; what is the density of the mixture assuming Ptotal = 1.00 atm?arrow_forward
- Write the nuclear equation that shows how deuterium and tritium fuse to form helium and a neutron.arrow_forwardWhat chemical or physical processes would result in the fact that apples lose mass when rotting and that nails rust? When apples rot they gas while they decompose. When a nail rusts, the ith from the air. absorb emit eTexthook and Medinarrow_forwardTHIS IS A QUIZ HOPE CAN BE ANSWERED FAST, SUBJECT CHEMISTRYarrow_forward
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