in an experiment to compare thermal conductivity of materials such as iron, lead, aluminium, copper and wood. the arrows on the rocks indicate the extent at which the vaseline applied around the material melted when heat is applied. i. identify each of the materials labeled I, II, III, IV and V using the melting level of the vaselineii. which material had the least melting of the vaseline?iii. give one reason for your answer in (ii) aboveiv. arrange the materials in order of decreasing conductivity of heatv. mention two modes of heat transfer in this experiment

Asap! how do you lengthen a pattern piece? (family and consumer science, sewing)

You mix the pks of succinic acid are 4.21 and 5.64. how many gramsa graduate student at sdsu wants to measure the activity of a particular enzyme at ph 4.0. to buffer her reaction, she will use a buffer system based on one of the acids listed below, which acid is most appropriate for the experiment? of monosodium succinate (fw = 140 g/mol) and disodium succinate (fw = 162 g/mol) must be added to 1 l of water to produce a solution with a ph 5.28 and a total solute concentration of 100 mm? (assume the total volume remains 1 liter, answer in grams monosodium succinate, grams disodium succinate, respectively.) volumes of 0.05 m nah2po4 and 0.05 m na2hpo4 (pk's for phosphoric acid are 2.15, 6.82 and 12.38). which of the following best describes the resulting solution?

How many grams of co(g) are there in 74.5 ml of the gas at 0.933 atm and 30o c?