Which of the following mixtures would represent a proper buffer solution? A buffer solution should have approximately the same moles of a weak acid and its conjugate base (or a weak base and its conjugate acid) in a solution since the species will be at equilibrium (with Ka << 1, for instance) and the common-ion effect will be in place in order for the buffer to be effective. Group of answer choices

2.0 M hydrochloric acid & water

Sodium chloride & hydrochloric acid, 1.0 M each

Sodium sulfate & sulfuric acid, 1.0 M each

Sodium formate & formic acid, 0.1 M each

0.1 M sodium nitrate & water

Ase your answer to this question on the information below. hydrocarbons and fissionable nuclei are among the sources used for the production of energy in the united states. a chemical reaction produces much less energy than a nuclear reaction per mole of reactant. the balanced chemical equation below represents the reaction of one molecule of a hydrocarbon with two molecules of oxygen. chemical equation: ch4 + 2o2 → co2 + 2h2o + 1.48 × 10−18 jthe nuclear equation below represents one of the many possible reactions for one fissionable nucleus. in this equation, x represents a missing product. nuclear equation: write an isotopic notation for the missing product represented by x in the nuclear equation.

6what is the importance of water on earth? a) it keeps the top layer of the geosphere cool b) it allows life to exist c) it provides ice at the poles d) it creates earth's blue color from space

What are the first three quantum numbers for the electrons located in subshell 2s?