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Find # of g of each product thats produced from 100.0 g of Na2CO3 and 300. g of Fe3Br8 by reaction 4 Na2CO3 + Fe3Br8 8NaBr + 4CO2 + Fe3O4? Use the value of the linear correlation coefficient to calculate the coefficient of determination. r=0.358? What formula would I use to find the sum of 3(-2)^n from n=2 to n=8? Can someone help me solve this math problem. find m: x? The temperature of a gas is 273K to 275K and the pressure increases are kept constant. How to change the volume?