Identify the number of atoms on the reactant side of the chemical equation.

Fe2O3 + 3H2 → 2Fe + 3H2O

There are blank Fe (iron) atoms.

There are blank O (oxygen) atoms.

There are blank H (hydrogen) atoms.

The Correct Answer is: 2,3,and 6

Explanation:

There are  

2

 Fe (iron) atoms.

There are  

3

 O (oxygen) atoms.

There are  

6

 H (hydrogen) atoms.

we have been given a quadratic function and we need to restrict the domain such that it becomes a one to one function.

we know that vertex of this quadratic function occurs at (5,2).

further, we know that range of this function is .

if we restrict the domain of this function to either or , it will become one to one function.

let us know find its inverse.

upon interchanging x and y, we get:

let us now solve this function for y.

hence, the inverse function would be if we restrict the domain of original function to and the inverse function would be if we restrict the domain to .