Answer:
Bohr o saka mi ad ha piebald webs ldb
Explanation:
Answer:

Explanation:
We will need a balanced chemical equation with masses and molar masses, so, let's gather all the information in one place.
Mᵣ: 98.08 392.18
2Cr + 3H₂SO₄ ⟶ Cr₂(SO₄)₃ + 3H₂
To solve the stoichiometry problem, you must
- Use the molar mass of H₂SO₄ to convert the mass of H₂SO₄ to moles of H₂SO₄
- Use the molar ratio to convert moles of H₂SO₄ to moles of Cr₂(SO₄)₃
- Use the molar mass of Cr₂(SO₄)₃ to convert moles of Cr₂(SO₄)₃ to mass of Cr₂(SO₄)₃
a) Mass of Cr₂(SO₄)₃
(i) Mass of pure H₂SO₄

(ii) Moles of H₂SO₄

(iii) Moles of Cr₂(SO₄)₃
The molar ratio is 1 mol Cr₂(SO₄)₃:3 mol H₂SO₄

(iv) Mass of Cr₂(SO₄)₃

b) Percentage yield
It is impossible to get a yield of 485.9 g. I will assume you meant 185.9 g.

I believe the statement is true. The heat transfer involved here is called conduction. It is one type of heat transfer where it caused by the collisions of the particles in a certain body. As the you add heat to the object, the kinetic energy of the molecules increases therefore more collisions could happen which would mean energy is dissipated or transferred from molecule to molecule.<span />
(1) CaCO3 is your answer. The positive ion is

and the negative
radical ion is

. There exists covalent bonds between the carbon and oxygen atoms in the

.