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Which chemical absorb sulphate ion? Given that u=log4 x, find logx 8? Determine the fraction of the magnitude of kinetic energy lost by a neutron (m1 = 1.01 u) when it collides head-on and elastically? X^2-3x+1 have the roots of m and n. Form a quadratic equation with the roots of 3-2m and 3-2n? How many atoms of He gas are present in a 450 mL container at 35 degrees celsius and 740 mmHg?'?