In an exothermic reaction, you need a ____ activation energy --- Ea--- when there will be no catalyst: higher stable none of these lower *Choose only one answer
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In an exothermic reaction, you need a ____ activation energy --- Ea--- when there will be no catalyst:
higher
stable
none of these
lower
*Choose only one answer
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- Pls ignore the highlighted part __________ is reduced in thefollowing reaction: Cr2O72- + 6S2O32-+ 14H+→ 2Cr3+ + 3S4O62- + 7H2OShow the arrow movement for the reactions belowformation of dimethyl tetraphenylphthalate tetraphenylcyclopentadienone: 0.121 g dimethyl acetylenedicarboxylate: 0.1 mL Amount of dimethyl tetraphenylphthalate: 0.18 g theoretical yield: ? percent yield: ?
- a) Draw the reaction mechanism for the reaction. b) Determine the limiting reagent.for part b, besides drawing the reaciton coordiate diagram, can you give. a quite detailed explanation about how do we know which curve corrresponds to A or B. i.e. how do we know A or B energy is higher ; whether theres energy differnce between reactant and products. thanks help with part b pleaseI think you forgot to cosider the +H2O on the second question, please edit your answer.
- What us the heat of the reaction for the reaction 2N2 + 5O2 --> 2N2O5, given: 2H2 + O2 --> 2H2O heat of reaction: -571.6 kJ N2O5 + H2O --> 2HNO3. heat of reaction: -73.7 kJ 1/2N2 + 3/2 O2 + 1/2H2 --> HNO3 heat of reaction: -174.1 kJReacción precipitada 2. _____(NH4)2SO4 (ac) + _____ NiCl2 (ac) ---> _____NH4Cl ( ) + _____NiSO4 ( ). Please type answer note write by hend.V What is the product of 1 and 2
- 2.A simple substitution or displacement reaction can be represented by the reaction A)CaCo3---------->CaO + CO2 B) HCl + NH3------>NH4Cl C) Cu + H2SO4----->CuSo4 + H2 D) S +¿ O2----------->SO2 E) None of the above.Based on this question, predict which side of the reaction is favored under equilibrium conditions?Three white wine brands, D, M, and B were tested for tartaric acid (FW=150.09) content. Tartaric acid has two acidic hydrogens. The allowable tartaric acid content in wine is in between 0.5 g to 10 g per liter. The wine is considered to be unstable with too much tartaric acid and content. However, since the bottle storing NaOH was left ajar for over two weeks, this was standardized again with KHP (FW=204.22) thrice with the following masses of KHP and their respective volumes, shown in the table 1. Table 1. Trial 1 Trial 2 Trial 3 W (KHP), mg 200.0 198.5 187.6 V (NaOH), mL 20.00 18.20 19.40 C (NaOH), M ? ? ? Preparation of the wine sample: 50.00 mL of each wine (d=1.75 g/mL) was diluted to 250.0 mL with water and a 50.00 mL aliquot was titrated with the NaOH, with results in table 2. Table 2. D M B V (NaOH), mL 20.00 18.20 19.40 W (Tartaric acid), mg ? ? ? Answer the following: In which trial…