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Nitella [24]
3 years ago
15

How many Iron molecules are in the compound Fe4O2?

Computers and Technology
2 answers:
Greeley [361]3 years ago
5 0

Explanation: Determine the mass of the substance, and its molar mass. Divide the given mass by its molar mass to get moles, then multiply times 6.022×1023molecules1mol

Mademuasel [1]3 years ago
4 0
They are amount according to their and they r 3
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4 years ago
Create a function called makePositive that accepts a single argument: an integer array. The function should walk through the arr
coldgirl [10]

Answer:

This solution is implemented in C++

void makePositive(int arr[]){

   int i =0;

   while(arr[i]!=0){

       if(arr[i]<0){

           arr[i] = abs(arr[i]);

       }

       i++;

   }

   i = 0;

   while(arr[i]!=0){

    cout<<arr[i]<<" ";

    i++;

}  

}

Explanation:

This defines the function makePositive

void makePositive(int arr[]){

This declares and initializes i to 0

   int i =0;

The following iteration is repeated until the last element in the array

   while(arr[i]!=0){

This checks if current array element is negative

       if(arr[i]<0){

If yes, it changes it to positive

           arr[i] = abs(arr[i]);

       }

The next element is then selected

       i++;

   }

This sets i to 0

   i = 0;

The following iteration prints the updated content of the array

<em>    while(arr[i]!=0){ </em>

<em>     cout<<arr[i]<<" "; </em>

<em>     i++; </em>

<em> }   </em>

}

See attachment for full program which includes the main

Download cpp
8 0
3 years ago
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