The Law of Conservation of Mass – during a ________ reaction, the mass (65) _______ the reaction must _______ the mass after the reaction. We show this by (66) writing and balancing a chemical _______. When we write a chemical equation, (67) we use the chemical _______ for the elements and _______ to indicate how (68) many atoms of each element are present in the reaction.
The Law of Conservation of Mass – during a chemical reaction, the mass before the reaction must equal the mass after the reaction. We show this by writing and balancing a chemical equation. When we write a chemical equation, we use the chemical symbols for the elements and subscripts to indicate how many atoms of each element are present in the reaction.
The Law of Conservation of Mass - during a chemical reaction, the mass (65) before the reaction must be (66) the mass after the reaction. We show this by (67) writing and balancing a chemical equation. When we write a chemical equation, (68) we use the chemical symbols for the elements and subscripts to indicate how (69) many atoms of each element are present in the reaction.
The Law of Conservation of Mass states that during a chemical reaction, the mass of the reaction must equal the mass after the reaction. This law is based on the understanding that matter cannot be created or destroyed, only rearranged.
To demonstrate the Law of Conservation of Mass, we write and balance a chemical equation. A chemical equation is a way to represent a chemical reaction using symbols and formulas. It shows the reactants (substances that undergo the reaction) on the left side of the equation and the products (substances that are formed by the reaction) on the right side.
To write a chemical equation, we use the chemical symbols for the elements involved in the reaction. For example, H represents hydrogen, O represents oxygen, and so on.
Additionally, we use subscripts to indicate how many atoms of each element are present in the reaction. The subscript is a number written below and to the right of the chemical symbol. It tells us the number of atoms of that element in the molecule. For example, H2O represents water, where the subscript 2 indicates that there are two hydrogen atoms bonded to one oxygen atom.
Balancing a chemical equation involves making sure that the number of atoms of each element is the same on both sides of the equation. This is done by adding coefficients, which are whole numbers placed in front of the chemical formulas, to balance out the equation. The coefficients multiply the number of atoms present in each molecule or compound.
By writing and balancing a chemical equation, we can visually see that the total mass of the reactants equals the total mass of the products, thus illustrating the Law of Conservation of Mass.