Methane gas reacts with chlorine gas to form dichloromethane and hydrogen chloride, as represented by the equation below. CH4(g) + 2Cl2(g) --> CH2Cl2(g) + 2HCl(g) A 25.0g sample of methane gas is placed in a reaction vessel containing 2.58 mole of Cl2(g. (a) Identify the limiting reactant when the methane and chlorine gases are combined. Justify your answer with a calculation. (b) Calculate the total number of moles of CH2Cl2(g) in the container after the limiting reactant has been totally consumed.

Researchers pose the question: can shoe size be predicted from a woman's height? a random sample of 18 females and their shoe size versus height (in inches) gives the regression results shown in the table. predictor coeff se coeff t ratio p-value constant -45.74 32.58 -2.57 0.147 height 0.5943 0.2984 1.99 0.042 s = 3.2178 r-sq. = 18.9% r-sq. (adj) = 12.4% is there statistical evidence of a linear relationship between shoe size and height? no, because r2, the coefficient of determination, is too small no, because 0.147 is above any reasonable significance level yes, there is evidence at the 5% significance level yes, because, by any reasonable observation, taller women tend to have a larger shoe size