Sulfuric acid, h2so4, can be neutralized by sodium hydroxide, naoh. the unbalanced equation is: h2so4(aq) + naoh(aq) → na2so4(aq) + h2o(l) a student who was asked to balance the reaction wrote the following: h2so4(aq) + na2oh(aq) →na2so4(aq) + h3o(l) is this correct? explain why or why not using what you know about the law of conservation of mass and chemical changes. if necessary, provide the correct balanced equation.

No.

Explanation:

The equation is not correct.

According to the Law of Conservation of Mass, there must be the same number of atoms of each type of element in the products as there were in the reactants.

The equation satisfies that condition.

However, it does not satisfy another condition: you cannot balance an equation by changing the formulas of the compounds.

The only way you can balance an equation is by changing the coefficients: the numbers in front of the formulas.

The correct balanced equation is

H₂SO₄(aq) + 2NaOH(aq) ⟶ Na₂SO₄(aq) + 2H₂O(ℓ)

most historians agree that gabriel mouton, the vicar of st. paul’s church in lyons, france, is the “founding father” of the metric system. he proposed a decimal system of measurement in 1670. mouton based it on the length of one minute of arc of a great circle of the earth (now called a nautical mile, 1852 meters). he also proposed the swing-length of a pendulum with a frequency of one beat per second as the unit of length (about 25 cm). a pendulum beating with this length would have been fairly easy to produce, thus facilitating the widespread distribution of uniform standards. over the years, his work was revised, improved, and extended by a number of french scientists.

the political sponsor of weights and measures reform in the french revolutionary national assembly was the bishop of autun, better known as talleyrand. under his auspices, the french academy appointed several committees to carry out the work of developing a usable system of weights and measures for france. one of the committees recommended a decimalized measurement system based upon a length equal to one ten-millionth of the length of a quadrant of the earth’s meridian (i.e., one ten-millionth of the distance between the equator and the north pole).