Suppose that coal of density 1.5 g/cm3 is pure carbon. (It is, in fact, much more com- plicated, but this is a reasonable first ap- proximation.

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A team member who functions as a(n) _______ suggests new ideas to approach the problem. a. orienter b. observer c. recorder d. initiator e. elaborator
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Suppose that coal of density 1.5 g/cm3 ispure carbon. (It is, in fact, much more com-plicated, but this is a reasonable first ap-proximation.) The combustion of carbon isdescribed by the equationC(s) + O2(g) −! CO2(g) H◦ = −394 kJWhat is the value of q (heat) when a lumpof coal of size 8.5 cm×8 cm×7.5 cm is burned?Answer in units of kJ.What mass of water can be heated from 21◦Cto 100◦C by burning this piece of coal?Answer in units of g.

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