1. Use the following equation to answer the questions below. CH4 (g) + 2O2 (g) — CO2 (g) + 2H2O (9)
1. What type
of reaction is this? Why do you say it is this type of reaction?
Support your claim with evidence. (2 points, 1 point valid type
of reaction, 1
point valid evidence)
2. What is the mole ratio of methane to water in the reaction? (1 point
correct mole ratio)
3. How many moles of water are produced from the reaction of 50.0g of
methane (CH4)? Show your work (2 points, 1 point valid answer, 1 point valid
work)​

Lab reagent, hypothesis test.a reference solution used as a lab reagent is purported to have a concentration of 5 mg/dl. six samples are taken from this solution and the following concentrations are recorded: (5.32, 4.88, 5.10, 4.73, 5.15, 4.75) mg/dl.these six measurements are assumed to be an srs of all possible measurements from solution.they are also assumed to have a standard deviation of 0.2, a normal distributin, and a mean concentration equal to the true concentration of the solution.carry out a significance test to determine whether these six measurements provide reliable evidence that the true concentration of the solution is actually not 5 mg/dl.