Calculate the number of moles of CO2(g) produced when 0.250 mol CH4(g) is burned in the presence of 0.400 mol O2(g). CH4(g) + 2 O2(g) → CO2(g) + 2 H2O(g)

b. acid is the correct answer @jayxboof all social media

acid : acids are those which accepts an electron-pairs.

base : bases are those which donates ab electron-pairs.

alkali : it is a base that dissolves in water. it is basically a base and the ph greater than 7.

hydroxide ion : it is a poly-atomic ion which is negatively charged.

i think it is d. e because the next one is igneous.

we can conclude that the melting point of table salt is above room temperature (it's actually 801 deg c). the melting point of mercury must be below room temperature (- 39 deg c).