<h3>
Answer:</h3>
Balanced equation: 4Fe + 3O₂ → 2Fe₂O₃
Moles of oxygen gas = 9 moles
<h3>
Explanation:</h3>
To answer the question;
- We first write the balanced equation between iron metal and Oxygen
- The balanced equation is given as;
4Fe + 3O₂ → 2Fe₂O₃
- We are given 6 moles of Fe₂O₃
We are required to determine the number of moles of oxygen needed to form 6 moles of Fe₂O₃.
- From the equation, 3 moles of oxygen gas reacts to produce 2 moles of Fe₂O₃
- This means, the mole ratio of O₂ to Fe₂O₃ is 3 : 2
Therefore; Moles of O₂ = Moles of Fe₂O₃ × 3/2
Hence, moles of oxygen = 6 moles × 3/2
= 9 moles
Thus, Moles of Oxygen needed is 9 moles
It is an alpha decay because when this phenomena occurs an atomic nucleus emits an alpha particle (helium nucleus) and consequentially decays into another atom with a mass number that is reduced by four an atomic number that is reduced by 2 two. The helium atom consists of two protons and two neutrons.
Therefore, the answer is <span>alpha decay because alpha particles have two protons and two neutrons</span>
Answer:
FeSO₄ + 2NaOH → Fe(OH)₂ + Na₂SO₄
Explanation:
The equation for the reaction is:
FeSO₄ + 2NaOH → Fe(OH)₂ + Na₂SO₄
Dissociation of each compound
FeSO₄ → Fe²⁺ + SO₄⁻²
NaOH → Na⁺ + OH⁻
Fe(OH)₂ → Fe²⁺ + 2OH⁻
Na₂SO₄ → 2Na⁺ + SO₄⁻²
I'm confused so I'm assuming that you want to know why, so its because they have a different number of neutrons. Hope I helped if not please update your question.
The biggest example is Pressure.
- If area will increase pressure decrease.
