Aliquid mixture containing ethanol (55.0 wt%) and the balance water enters a separation process unit a a rate of 90.5 kg/s. a technician draws samples of the two product streams leaving the separator an analyzes them with a gas chromatograph, obtaining 10.9% ethanol (product stream mounted in values of 86.2 wt% ethanol (product stream 1) and 2). the technician then reads a manometer attached to an orifice meter the pipe carrying product stream 1, converts the reading to a volumetric flow rate using a calibration curve, and converts that result to a mass flow rate using the average density of ethan water. the result is 54.0 stream using a material balance and reports the calculated product stream flow rates and compositions to you. you examine them, do some calculations, and reject them. (a) draw and label a flow chart of the separation process. (b) carry out the calculations that led you to reject the submitted results and explain how you knew the values were wrong. (c) list up to five possible reasons for the incorrect results. for each one, briefly state how you might determine whether it was in fact a cause of error and what you might do to correct it if it was. ol and kg/s. finally, the technician calculates the mass flow rate of the second product

the leaf is an organ of a typical plant, and the main functions are to complete photosynthesis and allow the plant to exchange gas, just like how we have the respiratory system. leaves have the stomata, which collects maintains co2 and o2 levels. this is necessary for cell metabolism. the leaf also collects sunlight using chloroplasts. succinctly, leaves own a pivotal role in sustaining plant life.

- calcium has greater affinity to bond with electron receptors than hydrogen does and hence, it has the ability to replace hydrogen in most of its compounds.

- lithium has 2 valence electrons in the product because it can make only 1 bond with hydrogen. beryllium has 4 valence electrons in the product because it can only make 2 bonds. it has fewer electrons than neon and can react with electron donors. each hydrogen has 2 valence electrons, the same as helium.

- the covalent bond formed between carbon and hydrogen is polar because carbon is more electronegative than hydrogen and it attracts the bonded electron pair closer to itself, thus giving hydrogen a partial positive charge.

- a hydrogen bond is a relatively weak bond that hydrogen atoms make with the electronegative atoms nitrogen, oxygen or fluorine.

so the best choice is a.) 2 calcium (ca) atoms

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explanation: