I got the same answer :/ Turns out I was wrong because there were square brackets around the equation :/ Like [ (0.39 x mass of copper something) + (4.2 x mass of water)] x T so it would be [ (0.39 x 300) + (4.2 x 400) ] x 12
I wrote Water inlet at the bottom, water outlet at the top and anti bumping granules. The next part I wrote that it was Reflux condensing. For the apparatus needed, I wrote horizontal condenser, thermometer and beaker.
What about the diagram completion? I wrote anti-bumping granules and condensation for technique(Which I believe is wrong) And the 3 modifications? I wrote Thermometer,Beaker/Flask and fractionating column(I think this is wrong as well)
What about the diagram completion? I wrote anti-bumping granules and condensation for technique(Which I believe is wrong) And the 3 modifications? I wrote Thermometer,Beaker/Flask and fractionating column(I think this is wrong as well)
even i wrote anti-bumbing granules.... and water in ,... and water out
Well the mass was already quite small(1.65),It could be that some of it was left lets say idk 0.30 which may not have been enough to provide fuel for the flame or something along those lines I think.Whether the justification is correct or not,It is valid because incomplete combustion is capable of that large percentage error.
No I think its only 1 for balancing.So you would get 1/2 for the question.
Like I mean, I didn't write K2CO3 at all. I wrote K2O instead :/
Then yeah probably.It was 2 marks which is usually either 1 mark for both correct reactants,products and states and 2nd for balancing or any other combinations.