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What number should be placed in front of HF to balance this chemical equation?
Wiki User
∙ 9y ago
H2 + F2 ____HF
Answer: 2 (APEX)
Wiki User
∙ 9y ago
Anonymous
3
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What is the differences between subscripts and coefficients?
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.
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.
Which coefficient should be placed in front of PCl3 to balance this equation?
4
What is a balanced chemical equation why should the chemical equation be balanced?
A balanced chemical equation is when both the products and the reactants are balanced, or have the same number of atoms on each side of the equation. For example: 2H20 --> 2H2 + O2 This means there are 2 water molecules as the reactants (before reaction) and 4 hydrogen and 2 oxygen atoms as the products (after reaction). Technically the equation wouldn't work in real life if it weren't correctly balanced.
What are products and where are they located in chemical equations?
Products are what the reactants convert to after a reaction is complete. The products are traditionally shown on the right hand side of a chemical 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 differences between subscripts and coefficients?
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.
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.
How can you balance a chemical equation using coefficients?
Co-efficients are written in a chemical equation to balance the equation. this is due to the conservation of mass seeing how we can't make substances out of nothing. For Example. NaOH + H2SO4 --> Na2SO4 + H2O As you can see on the left side, there is only one Na (sodium) atom, but on the right hand side we have 2. meaning that an extra sodium atom appeared from no where and this VIOLATES the conservation of mass. so we must balance is 2NaOH+H2SO4 --> Na2SO4 + 2H2O There are 2 Na on both sides There is 1 sulfur (s) on both sides there is 4 H on both sides and 6 oxygen on both sides. Hope this helps :D
What is a number placed in front of a chemical formula in a chemical equation called?
Coefficient. It generally corresponds to the number of moles of the molecule / atom under consideration.
What is a balanced chemical equation . why should chemical be balanced?
A balanced chemical equation has correct placed coefficients and a representative chemical equation need these coefficients.
Numbers placed in front of chemical symbols and compound formulas in chemical equations are called what?
Atomic weight. It's always the bigger number.
Which coefficient should be placed in front of PCl3 to balance this equation?
4
What are large numbers placed to the immediate left of the element's symbols in a chemical equation that are used to balance the chemical equation?
They are called coefficients. They represent the number of moles of that element required for the reaction to be completed as written in relation to the number of moles for the other elements. They can also be considered the number of molecules required (different from moles), but most combustion reactions include 1/2 as a coefficient for O2. So don't get confused.
What is the number to the left to a chemical formula?
Balancing a chemical equation can often require a whole-number coefficient placed in front of a chemical formula. This upholds the Law of Conservation of Matter, which says that matter cannot be created or destroyed. These coefficients must be in the lowest possible ratio.
What is a balanced chemical equation why should the chemical equation be balanced?
A balanced chemical equation is when both the products and the reactants are balanced, or have the same number of atoms on each side of the equation. For example: 2H20 --> 2H2 + O2 This means there are 2 water molecules as the reactants (before reaction) and 4 hydrogen and 2 oxygen atoms as the products (after reaction). Technically the equation wouldn't work in real life if it weren't correctly balanced.
The numbers which are placed in front of each reactant and product in order to balance the equation are called?
Stoichiometric coefficients.
