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H2 + F2 ____HF

Answer: 2 (APEX)

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A number placed in front of a chemial formula in a chemical equation is called?

The number placed in front of a chemical formula in a chemical equation is called a coefficient. Coefficients are used to balance chemical equations by ensuring that the number of atoms of each element is the same on both sides of the equation.


A number placed in front of the chemical formula in a chemical equation is called a?

coefficient. It is used to balance the equation by ensuring that the number of atoms of each element on both sides of the equation is equal.


Which coefficient should be placed in front of PCl3 to balance this equation?

The coefficient that should be placed in front of PCl3 to balance the equation depends on the specific chemical equation you are referring to. Can you please provide the chemical equation?


What are used to balance chemical equations?

Coefficients are used to balance chemical equations. These numbers are placed in front of the chemical formulas to ensure that the number of atoms on both sides of the equation are equal.


What may be changed in order to balance a chemical equation?

Coefficients can be adjusted to balance a chemical equation. Coefficients are placed in front of chemical formulas to ensure that there is the same number of each type of atom on both sides of the equation. The goal is to have an equal number of atoms of each element on the reactant and product sides.


Where should coefficients be place when balaning a chemical equation?

Coefficients should be placed in front of the chemical formulas in a chemical equation to balance it. They are used to ensure that the number of atoms of each element is the same on both the reactant and product sides of the equation.


What is meant by coefficient in relation to chemical equations?

In a chemical equation, a coefficient is a number placed in front of a chemical formula to balance the equation by ensuring that the number of atoms for each element is equal on both sides. It represents the ratio of moles or molecules involved in the reaction.


The numbers which are placed in front of each reactant and product in order to balance the equation are called?

The numbers placed in front of each reactant and product to balance the equation are called coefficients. These coefficients help ensure that the number of atoms for each element is the same on both sides of the chemical equation.


Where is a coefficient placed in a chemical equation?

A coefficient is placed in front of a chemical formula to indicate the number of molecules or atoms involved in the reaction. It affects the entire chemical formula that follows it in the equation.


What is the difference between a subscript and coefficiant?

A coefficient is the number that goes before an element when your balancing the equation. And a subscript is the number after the element. Subscripts are not changed when you balance the equation.


What is the coefficent that shows in a chemical equation?

Equations for chemical reactions may require one or more whole-number coefficients in order for the equation to balance. Balancing a chemical equation upholds the law of conservation of mass, which states that matter cannot be created or destroyed. The coefficients represent molar ratios of reactants and products. Performing stoichiometric calculations is largely dependent upon these correct molar proportions.


A number placed in front of a chemical formula in a chemical equation is called?

In a chemical Equation ,The reactants are on the left side of a chemical equation and the products are on the right side.The number in front of a chemical formula in a chemical equation is called atoms. They should be a balancing number on both the sides.