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Answer:

Across
1Toxicity of oxidising agent ,Disposal of Cr3+,Control of temperature/rate in scaled up reaction could be _____ lab process has a lower atom economy. Energy costs to separate ethanoic acid from reaction mixture Lab procedure is a batch process
3to the water supply to improve the _____ health of children. An alternative would be to supply free fluoride tablets.
4Greater risk of skin cancer CF3CHF2 has strong C-F bonds so does not release F radicals, 10.0 cm3 of a solution containing Cu2+(aq) ions was added to excess potassium iodide solution and the following reaction _____.
7During the titration, the barium hydroxide was added until it was present in excess. The electrical conductivity of the _____ mixture
9Which of the following has dipole-dipole _____ between its molecules, but no hydrogen bonding?
10Energy must be at least EA for successful collision / for reaction (1) OR So more collisions have sufficient _____ to react(1)
Down
2Which compound gives a lilac _____ in a flame test and does not decompose on heating?
5State TWO observations, which would _____ from those with potassium bromide, when potassium iodide reacts with concentrated sulfuric acid.
6Larger titration reading (1) So smaller (%)error in titration reading (1)OR Smaller mass of _____ thiosulfate used to make solution (1) So greater %) error in the mass measurement (1) 150 m3 of air was passed through the iodine.
8How many moles of _____ remained in the solution at the end of the experiment?
 
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