Question

Now that you have learned to balance equations using the models on the simulation. See if you can balance these equations.(These are not found in the sim).

Answer 1

Step-by-step explanation:

To answer this question, we need to:

Step 1 - Balance the question

To balance the equation it is necessary to have the same number of atoms of each element on both sides of the equation (reactant side and product side). Let's count the number of atoms of each element for the unbalanced equation: P2O5 + H2O → H3PO4

Reactants side:

P - 2

O - 6

H - 2

Products side:

P - 1

O - 4

H - 3

As we can see, all of the atoms are not balanced. So let's start balancing P putting a coefficient 2 in front of H3PO4:

P2O5 + H2O → 2 H3PO4

Now let's balance O and H putting a coefficient 3 in front of H2O:

P2O5 + 3 H2O → 2 H3PO4

Let's count the number of atoms of each element for the balanced equation.

Reactant side:

P - 2

O - 8

H - 6

Product side:

P - 2

O - 8

H - 6

Now the equation is balanced.

Answer: P2O5 + 3 H2O → 2 H3PO4

Coefficients are: 1, 3 and 2.