Question

Please help!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!

Answer 1

The Correct answer is option 3

Step by Syep Step-by-step explanation:

4Fe+3O2---->rust

formula for rust----->Fe2O3

4Fe+3O2---->Fe2O3

Balancing the Chemical Equation

both the reactant and product side

we have that;

4Fe+3O2------->2FeO3

the equation is Chemically Balanced

therefore 4Fe+3O2------->2×rust

Answer 2

• 2Fe₂O₃ (Option 3)

Step-by-step explanation:

Given that,

• 4Fe + 3O2 → rust.

Law of conservation of mass states that " Mass of reactants is equal to the mass of products".

Also we know that In a balanced equation the total number of atoms in the reactants equals the total number of atoms in the product.

We are given with 4Fe + 3O₂ i.e the reactant.

First Let's calculate the number of atoms in the reactant.

• No. of atoms in Fe = 4
• No. of atoms in O = 3 × 2 = 6

Now, Let's find the product .

Also, We can see 2Fe₂O₃ (Product)

• No. of atoms in Fe = 2 × 2 = 4
• No. of atoms in O = 2 × 3 = 6.

4Fe + 3O₂ → 2Fe₂O₃

Number of atoms in the reactants = the total number of atoms in the product.

Therefore, 2Fe₂O₃ (Option 3) will the required answer .