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4-Methylstyrene is capable of undergoing polymerization. Draw a section of the resulting polymer chain, showing three repeating units, and state what type of polymerization this is.
Which feature of the hydrogen emission spectrum shows that the spacing between the electron energy levels decreases as the energy of the levels increases? A. The lines within each series get closer together towards the high-frequency end B. The spectrum…
(i) Suggest one hazard to health or safety in Student A's procedure. (ii) Student A plotted the highest temperature of each mixture against the volume of nitric acid. With a ruler, draw two straight lines of best fit: one following the rising set of points and…
Student B pipetted 30.00 of the potassium hydroxide solution into a 150 glass beaker and added the nitric acid from a burette in portions of 4.00 , recording the steady temperature after each addition. Volume of…
(i) In aqueous solution sulfuric acid transfers a proton to a water molecule, forming the hydroxonium ion, . Annotate the structure of the hydroxonium ion to indicate the coordination bond. (ii) Write an equation for the reaction between excess…
(i) For the carbonate ion, draw its Lewis formula. (ii) Write the chemical formula of ammonium carbonate. (iii) State why all three C–O bonds in the carbonate ion are identical. (iv) Using section 11 of the data booklet, predict the length of the C–O bonds in…
Using section 19 of the data booklet, predict and explain what would be observed if zinc and silver metals were each added to a separate sample of blue copper(II) sulfate solution. Metal added Zn Ag Observations
Sulfurous acid has the formula . (i) Using the concept of formal charge, outline why Lewis formula 2 is the more stable, preferred structure. (ii) Write the formula for the conjugate base formed from sulfurous acid.
The diagrams show the 3s and 3p sublevels of a sulfur atom; the inner sublevels are full. Which diagram represents the ground-state electron configuration, in agreement with the Pauli exclusion principle and Hund's rule? A. Diagram A B. Diagram B C. Diagram C…
Each beaker used as a chromatography chamber was covered with a watch glass while the solvent rose up the paper. Explain why the chamber has to be covered for the experiment to be properly designed.