Consider the equation:
Ca+O2→CaO
What needs to be done in order to balance the equation?
Responses
Place a 2 in front of the CaO only.
Place a 2 in front of the , Upper case C lower case a upper case O, only.
Place a 2 in front of the Ca and the CaO.
Place a 2 in front of the , Upper case C lower case a, and the , Upper case C lower case a upper case O, .
Place a 2 in front of the O2 and the CaO.
Place a 2 in front of the , upper case O subscript 2 end subscript, and the , Upper case C lower case a upper case O, .
Place a 2 only in front of the Ca.
Place a 2 in front of the O2 and the CaO.
To balance the equation Ca + O2 → CaO, you need to place a 2 in front of the CaO.
To balance the equation Ca + O2 → CaO, you need to ensure that there is an equal number of atoms on both sides of the equation. Let's break down the equation and see how to balance it step by step.
On the left side (reactants), we have 1 Ca atom and 2 O atoms. On the right side (product), we have 1 Ca atom and 1 O atom.
To balance the Ca atoms, you can place a coefficient of 2 in front of Ca on the left side: 2Ca + O2 → CaO.
Now let's balance the oxygen atoms. With 2 Ca atoms on the left side, we would need 2 O atoms on the right side as well. To achieve this, you can place a coefficient of 2 in front of O2 on the left side: 2Ca + 2O2 → CaO.
Finally, the equation is balanced with an equal number of Ca and O atoms on both sides: 2Ca + 2O2 → 2CaO.
Therefore, the correct response is: Place a 2 in front of the Ca and the CaO.