Zadanie 8b
Explain, using collision theory, why the rate of this reaction decreases when the temperature is lowered.
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Explain, using collision theory, why the rate of this reaction decreases when the temperature is lowered.
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What are the electron domain and molecular geometries of ClF3? In each option the electron domain geometry is given first and the molecular geometry second. A. trigonal bipyramidal, trigonal planar B. trigonal bipyramidal, T-shaped C. trigonal planar,…
The Lewis formula of the chlorate(VII) ion, ClO4−, can be drawn with four single Cl–O bonds, as shown. What is the formal charge of the chlorine atom in this Lewis formula? A. −1 B. +1 C. +3 D. +7
State the equation for the formation of glucose by photosynthesis.
(i) Outline two advantages of using biobutanol rather than petrol (gasoline) as a fuel for vehicles. (ii) Calculate, using the average bond enthalpies in section 12 of the data booklet, the enthalpy change in kJ mol−1 for the combustion of…
Calculate the rise in temperature of 400.0 cm3 of water heated by the complete combustion of 2.00 g of butan-1-ol, assuming that all the energy released is transferred to the water. Use sections 2 and 14 of the data booklet.
Explain the following trend in the atomic radii of three of the atoms in the urea molecule: H < N < C.
The cyanate ion, NCO−, can be represented by two Lewis formulas, X and Y. Which row correctly gives the formal charges on N, C and O in each structure and identifies the more stable structure? A. X: 0, 0, −1; Y: −1, 0, 0; more stable: Y B. X: 0, 0, −1;…
Methanoic acid, HCOOH, has the structure shown. What are the hybridizations of the carbon atom, the oxygen atom of the C=O bond and the oxygen atom of the O–H bond? In each option the hybridizations are listed in that order. A. sp2,…