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How many atoms does oxygen have on the left hand side of an equation?
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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.
What do you notice about the number of atoms on each side of a chemical equation?
That the number of atoms on the left side of the equation must be the same number of atoms that are on the right side of the equation.
How many oxygen atoms are left after photosynthesis?
6
What law do you know that all chemical reactions must be balanced what does it mean it must equal?
Law of Equilibrium Think of a chemical reaction as any math equation like 2 + 8 = 10. This is true since there are 10 units on the left as well as the right. This is exactly like a chemical equation C + O2 --> CO2 On the left side we have 1 carbon atom and two oxygen atoms. On the right side we have 1 carbon atom and 2 oxygen atoms so this is saying that both sides have the same amount of each atom. If it was unequal it would look like C + O2 --> C2O2 Left side has 1 carbon and two oxygen atoms but the right side has 2 carbon atoms and 2 oxygen atoms. 3 is not equal to 4.
What do you count to decide whether or not an equation is balanced?
If you count all of the atoms of each element on the left and all the atoms of each element on the right and the numbers on the left and right are equal for EVERY element, then the equation is balanced.
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.
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.
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.
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.
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.
What do you notice about the number of atoms on each side of a chemical equation?
That the number of atoms on the left side of the equation must be the same number of atoms that are on the right side of the equation.
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.
How many oxygen atoms are left after photosynthesis?
6
What law states that the number of atoms on the right of a chemical equation is equal to the number of atoms on the left of the chemical equation called?
This is the law of mass conservation.
How do you balcance a chemical equation?
Balancing a chemical equation is not the most simplest tasks. In order to balance a chemical equation, you must add coefficients to the chemical equation to ensure that the numbers of the atom add up to the same amount on each side. You can only add coefficients. Never take them away, or anything else in the chemical equation. I'll use a simple chemical equation as an example: Na + O2 → Na2O There is one sodium atom and two oxygen atoms on the left side of the arrow. There are two sodium atoms and one oxygen atom on the right side of the arrow. To show this, I will add more supscripts. Na1 + O2 → Na2O1 In order for this to be a balanced equation, you must make sure that the sodium and oxygen atoms on one side equal the amount of sodium and oxygen atoms on the other side of the atom. As the law of conservation of mass states, mass is not created or destroyed in chemical or physical changes. This is where coefficients come in. Coefficients are numbers added to the beginning of the atomic symbol that multiply the number of atoms of that element. We can start by adding the coefficient 2 in front of the "Na2O1". What we're trying to do is match the number of oxygen atoms on the right side of the arrow with the number of oxygen atoms on the left. We multiply the coefficient 2 by the supscripts 2 and 1, and this is what we get: Na1 + O2 → 2Na2O1 = Na1 + O2 → Na4O2 Now, the number of oxygen atoms match. However, the number of sodium atoms do not. The plus (+) sign on the left side of the equation is what separates both the sodium 1 atom and the oxygen 2 atoms. By adding the coefficient of 4 just to the sodium atom, you end up with this: 4Na1 + O2 → Na4O2 = Na4 + O2 → Na4O2 Now, both sides have the same number of atoms. Our result is: 4Na1 + O2 → 2Na2O1 = Na4 + O2 → Na4O2 By adding coefficients, the number of atoms have been made equal, and the equation is balanced.
Are there three sides to an equation?
Not normally because the left hand side is equal to the right hand side of an equation
