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Don't know what "this" chemical reaction is, but chances are, the small 2 is a subscript. Subscripts are used in chemistry to represent how many atoms you have in a compound. For example, in the formula MgCl2, that 2 tells you that you have 2 chlorines for every 1 magnesium. If there is no subscript (like after the magnesium), that means there's only 1 atom. Kind of like in algebra, when you see the variable "x" it really means 1-times-x; you just don't show the 1. In chemistry, the subscript only refers to whatever element is immediately before it. If the subscript is outside a set of parentheses, it refers to everything within the parentheses.
What else can I help you with?
Which number in a chemical equation shows you the number of atoms?
The coefficient times the subscripts in a chemical formula show you the number of atoms of each element for each substance in the equation.
How does a chemical equation show that matter is always conserved in a chemical reaction?
According to the Law of Conservation Of Mass,Matter is neither created nor destroyed.It means a chemical equation show that matter is always conserved in a chemical reaction.It is shown as number of atoms both sides of the reaction before and after remains the same.
How does chemical equations show a conservation of mass?
A properly written chemical equation will always show the same number of atoms of each elemental on each side, showing that no atoms are created or destroyed in the chemical reaction.
How does a balanced chemical equation show the conservation of mass?
A balanced chemical equation ensures that the number of atoms of each element is the same on both sides of the equation. This demonstrates the law of conservation of mass, which states that matter is neither created nor destroyed in a chemical reaction. By balancing the equation, we can see that the total mass of the reactants is equal to the total mass of the products.
What is a correctly written chemical equation?
A correctly written chemical equation should show the reactants on the left side and the products on the right side, separated by an arrow. The equation should be balanced, meaning that the number of each type of atom is the same on both sides of the equation. The chemical formulas of the substances involved should be correctly written with the appropriate subscripts and coefficients.
Which number in a chemical equation shows you the number of atoms?
The coefficient times the subscripts in a chemical formula show you the number of atoms of each element for each substance in the equation.
How are equation coefficients useful in determining amounts of reactions and products?
Equation coefficients show the number of molecules involved in a chemical reaction.
What is a chemical equation balanced does it show?
Chemical equations are representative for chemical reactions.
What is a special type of sentence that show what happens during a chemical reaction?
a word equation, or a chemical equation
A representation of a chemical reaction that uses symbols to show the relationship between the reactants and the products.?
This representation is a chemical equation.
How does the chemical equation show that a chemical reaction occurred?
When a compound produces.
Does a chemical equation show the number of atoms lost during a chemical reaction?
Yes, a chemical equation shows the number of atoms of each element involved in a chemical reaction, including those gained, lost, or rearranged. The Law of Conservation of Mass states that mass is conserved in a chemical reaction, so the total number of atoms before and after the reaction must be the same.
How does a chemical equation show that matter is always conserved in a chemical reaction?
According to the Law of Conservation Of Mass,Matter is neither created nor destroyed.It means a chemical equation show that matter is always conserved in a chemical reaction.It is shown as number of atoms both sides of the reaction before and after remains the same.
How does chemical equations show a conservation of mass?
A properly written chemical equation will always show the same number of atoms of each elemental on each side, showing that no atoms are created or destroyed in the chemical reaction.
A shorter easier way to show chemical reactions using symbols instead of works is called?
The shorter and easier way to show chemical reactions using symbols instead of words is called a chemical equation.
How does a balanced chemical equation show the conservation of mass?
A balanced chemical equation ensures that the number of atoms of each element is the same on both sides of the equation. This demonstrates the law of conservation of mass, which states that matter is neither created nor destroyed in a chemical reaction. By balancing the equation, we can see that the total mass of the reactants is equal to the total mass of the products.
What is a correctly written chemical equation?
A correctly written chemical equation should show the reactants on the left side and the products on the right side, separated by an arrow. The equation should be balanced, meaning that the number of each type of atom is the same on both sides of the equation. The chemical formulas of the substances involved should be correctly written with the appropriate subscripts and coefficients.
