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In a chemical equation, the number of atoms on each side must be balanced according to the Law of Conservation of Mass. For oxygen, the number of atoms can vary depending on the specific compound involved in the reaction. To determine the number of oxygen atoms on the left-hand side of an equation, you would need to look at the stoichiometry of the reaction being described.

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1y ago

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How do you check that an equation is balanced?

Make sure that the number of atoms on the left side of the equation is the same as the number of atoms on the right side.For example: -H + O2 --> H2O This is not a balanced equation because there is more oxygen and less hydrogen on the left side of the equation then is needed on the right side.4H + O2 --> 2H2O This equation is balanced because there is 4 hydrogen atoms and 2 oxygen atoms on both sides of the equation.


How many atoms of oxygen are there on each side what chemical equation 2 Mg plus O2 - MgO?

It should be 2Mg+O2 = 2MgO, that is an equation (both sides equal).


How can I tell if a chemical reaction is balanced or not balanced?

If the equation has the same number of each type of atom on both sides of the arrow, it is balanced. If the number of atoms on each side of the arrow is not the same, the equation is not balanced. For example, in the equation H2 + O2 -->H2O, there are two hydrogen atoms and two oxygen atoms on the left, and two hydrogen atoms and one oxygen atom on the right. Therefore, the equation is not balanced. However, in the equation 2H2 + O2 -->2H2O, there are four hydrogen atoms and two oxygen atoms on the left and four hydrogen atoms and two oxygen atoms on the right, so the equation is balanced.


Why is the chemical equation H2 plus O2 equals H2O is not balanced?

The chemical equation H2 + O2 -> H2O is not balanced because the number of oxygen atoms is not equal on both sides of the equation. There are two oxygen atoms on the left side (O2) and only one on the right side (H2O). Balancing the equation would require adding a coefficient of 2 in front of H2O to have an equal number of oxygen atoms on both sides.


If the coefficient 2 is placed in front of the product tetraiodine nonaoxide (I4O9) then how many atoms of each element must be accounted for on the other side of the equation?

If the coefficient 2 is placed in front of tetraiodine nonaoxide (I₄O₉), the formula becomes 2 I₄O₉. This means there are 8 iodine (I) atoms and 18 oxygen (O) atoms on the left side of the equation. Therefore, the other side of the equation must also account for 8 iodine atoms and 18 oxygen atoms to balance the equation.


How many atoms of oxygen are there on each side what chemical equation 2 Mg O2 -- 2 MgO?

There are two atoms of oxygen on each side.


Is the equation 2NO O2 - NO2 balanced why or why not?

2NO + O2 --> NO2 is not balanced. There are two nitrogen atoms on the left and only one on the right. There are four oxygen atoms on the left and only one on the right. The correct balanced equation is 2NO + O2 --> 2NO2.


Why is the equation H2 O2 -- H20 not balanced?

The equation H2 + O2 -> H2O is not balanced because the number of oxygen atoms is not equal on both sides. In this equation, there are two oxygen atoms on the left side (1 in H2O and 1 in O2) and only one oxygen atom on the right side (in H2O). Balancing the equation would require adjusting the coefficients to ensure that there is the same number of each type of atom on both sides.


What do you mean by balanced chemical equation?

A balanced chemical equation is one where the number of the same atoms on both sides are equal. A balanced chemial equation is important because during a chemical reaction, there is rearrangement of atoms only and no new atoms are added. To understand the concept of a balanced chemical equation, first consider an unbalanced chemical equation between magnesium and oxygen to form magnesium oxide. Unbalanced chemical equation: Mg(s) + O2(g) --> MgO(s) Initially, this equation is unbalanced because if we count the number of the oxygen atoms on both sides, the number are unequal. There are two oxygen atoms on the left side but only one on the right side. A balanced chemical equation is one where the number of all of the same atoms on both side are equal. We can balance chemical equations by adding numbers to the coefficient of the chemicals that are involved in the reaction. Balanced chemical equation: 2Mg(s) + O2(g) --> 2MgO(s) This equation is now balanced because if we count the number of the same atoms on both side, they are equal. There are two magnesium atoms and two oxygen atoms on both sides of the equation.


What do you mean by chemical equation?

A balanced chemical equation is one where the number of the same atoms on both sides are equal. A balanced chemial equation is important because during a chemical reaction, there is rearrangement of atoms only and no new atoms are added. To understand the concept of a balanced chemical equation, first consider an unbalanced chemical equation between magnesium and oxygen to form magnesium oxide. Unbalanced chemical equation: Mg(s) + O2(g) --> MgO(s) Initially, this equation is unbalanced because if we count the number of the oxygen atoms on both sides, the number are unequal. There are two oxygen atoms on the left side but only one on the right side. A balanced chemical equation is one where the number of all of the same atoms on both side are equal. We can balance chemical equations by adding numbers to the coefficient of the chemicals that are involved in the reaction. Balanced chemical equation: 2Mg(s) + O2(g) --> 2MgO(s) This equation is now balanced because if we count the number of the same atoms on both side, they are equal. There are two magnesium atoms and two oxygen atoms on both sides of the equation.


What does balance the equation mean?

In terms of Chemistry it means to make sure that there are equal numbers of atoms on both sides of the equation. For example, H2O2 +O2 = OH + O2 is not balanced as there are only four atoms of oxygen and two atoms of hydrogen on the left, and there are 3 atoms of oxygen and an atom of hydrogen on the right. To balance it, you make it so that it looks like this: H2O2 + O2 = 2OH + O2. Now, you have 2 atoms of hydrogen on the left with four atoms of oxygen, and 2 atoms of hydrogen on the right with four atoms of oxygen. Here is another balanced equation: 6 CO2 + 12 H2O + energy → C6H12O6 + 6 O2 + 6 H2O Carbon dioxide and water plus energy yields sugar, oxygen, and water. This essential chemical reaction is known as photosynthesis.


Are there three sides to an equation?

Not normally because the left hand side is equal to the right hand side of an equation