What is the volume in liters of hydrogen gas that would be produced by the reaction of 40. 0 g of al with excess hcl at stp according to the following reaction? 2 al (s) + 6 hcl (aq) → 2 alcl₃ (aq) + 3 h₂ (g).

Heights of men on a baseball team have a bell-shaped distribution with a mean of 177 cm and a standard deviation of 6 cm. using the empirical rule, what is the approximate percentage of the men between the following values? a. 159 cm and 195 cm b. 165 cm and 189 cm a. 89% of the men are between 159 cm and 195 cm. (round to one decimal place as needed.) b. 89% of the men are between 165 cm and 189 cm. (round to one decimal place as needed.)