A metal pot of water is put on a stove. The stove heats up and the water boils. The system consists of the stove, water, and the pot. Which of the following flowcharts most accurately models the path of heat energy transferred in this system?

Yeah, you're correct.

Explanation:

Convection when the water kind of "moves" within the pot and conduction  when the pot is touching the stove.

Balanced equation: H₂S₂O₇  +  H₂O →  2H₂SO₄

Theoretical yield of H₂SO₄: 1322 g

Percent yield for the H₂SO₄ production: 33%

Explanation:

First of all, we determine the balanced equation:

H₂S₂O₇  +  H₂O →  2H₂SO₄

Stoichiometry says that 1 mol of oleum reacts to 1 mol of water in order to produce 2 moles of sulfuric acid.

1.20 kg = 1200 g

We convert the grams to moles → 1200 g . 1mol/ 178.12g = 6.74 mol

Ratio is 1:2, so if we have 6.74 mol of oleum we can produce the double of moles of acid. (6.74 . 2) = 13.48 moles of acid.

This is the 100 % yield reaction, or it can be called theoretical yield.

We convert the moles to mass → 13.48 mol . 98g /1mol = 1322 g of acid may be produced.

In the problem, they said we produced 435 g of acid, so let's determine the percent yield.

Percent yield of reaction = (Produced yield / Theoretical yield) . 100

Percent yield of reaction = (435 / 1322) . 100 → 33 %