CH4 reacts with excess oxygen as shown and 300 g of water is recovered from 150 g of methane. What is the percentage yield? CH4 + 2O2 → CO2 + 2H2O

answer

i think the answer is a) as air pressure in an area increases, the density of the gas particles in that area decreases.

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the correct answer is b. a strong acid completely dissociates to its ions when dissolved in water. completely dissociates to and ions. a is incorrect because does not fully ionize to and ions and some remain as the compound . c and d are incorrect because, and do not fall into the category of bronsted lowry acids. a bronsted lowry acid is a proton donor and since both molecules do not have a proton to donate they are not bronsted lowry acids. likewise,   if we use the lewis acid definition, they cannot be acids. a lewis acid is an electron pair acceptor. both and have a complete octet so can not accept any electrons which disqualifies them as acids.