Methane (CH4) reacts with oxygen to make carbon dioxide and dihydrogen monoxide. If 2.90 X 1012 L of methane reacts, how many moles of dihydrogen monoxide will be produced? (2.59 x1011 mol H2O)
CH4 + O2CO2 + H2O

Abottled water distributor wants to estimate the amount of water contained in 1-gallon bottles purchased from a nationally known water bottling company. the water bottling company’s specifications state that the standard deviation of the amount of water is equal to 0.02 gallon. a random sample of 50 bottles is selected, and the sample mean amount of water per 1-gallon bottle is 0.995 gallon a. construct a 99% confidence interval estimate for the popula-tion mean amount of water included in a 1-gallon bottle. b. on the basis of these results, do you think that the distributor has a right to complain to the water bottling company? why? c. must you assume that the population amount of water per bottle is normally distributed here? explain. d. construct a 95% confidence interval estimate. how does this change your answer to (b)?

In the diagram below de and ed are tangent to 0 which expression gives the measure of def

This venn diagram shows the pizza topping preferences for 9 students