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How do you use polyatomic ion numbers when writing chemical reaction equations?
Wiki User
∙ 15y ago
We write a polyatomic ionic expression by just using the chemical symbols for the elements in the ion and a superscript following that to state the charge. Let's take a look at an example. In the strong base sodium hydroxide (NaOH), this molecule will "split" or dissociate into the ions Na+ and OH- when in water. Note the polyatomic hydroxide ion. The strong acid sulfuric acid (H2SO4) will dissociate into 2H+ and SO4-2 in water. The sulfate ion is clearly represented here. If we combine the two in a classic acid-base reaction, and we include the ionic states, we'll see a result like this: NaOH + H2SO4 => [ Na+ + OH- ] + [ 2H+ + SO4-2 ] => NaSO4 + H2O Note that this equation is notbalanced. We left that out to concentrate on writing the poly atomic ions and showing their charge. Here's the way the equation might appear in a chem text: 2NaOH + H2SO4 => Na2SO4 + 2H2O As mentioned, this is a classic acid-base reaction, and it will result in the formation of a salt and water as products.
Wiki User
∙ 15y ago
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What is the difference between a math equation and a chemical equation?
A math equation uses variables and numbers, while a chemical equation uses compounds and mole ratios.
How do you know if something is polyatomic?
In principle, only by comparing the chemical formula for the compound with the formulas of ions known to be polyatomic to determine whether the sequence of letters and subscript numbers (if any) in any part of the chemical formula corresponds to the sequence of letters and subscript numbers in the formula of a know polyatomic ion.
What chemical equation has equal numbers of reactant and product atoms?
Any chemical reaction.
Are chemical equations balanced by changing the subscripts of the molecules?
No - they are usually balanced by changing the numbers before the molecules.
What indicates the relative numbers of reactants and products in a chemical reaction?
The number of initial chemical compounds (reactants) and the number of final compounds resulted from the reaction (products).
Why is net ionic communicate more than chemical equations?
The net ionic equations only represent the substances that make a change in the oxidation numbers, whereas a chemical equation shows all substances even they do not differ during the reaction.
What is ionic?
Ionic equations are a special type of chemical equations that demonstrate the changes in oxidation numbers in particular ions.
What is the difference between a math equation and a chemical equation?
A math equation uses variables and numbers, while a chemical equation uses compounds and mole ratios.
How do you know if something is polyatomic?
In principle, only by comparing the chemical formula for the compound with the formulas of ions known to be polyatomic to determine whether the sequence of letters and subscript numbers (if any) in any part of the chemical formula corresponds to the sequence of letters and subscript numbers in the formula of a know polyatomic ion.
The balancing of chemical equations is dictated by?
The law of conservation of mass. This law states that matter can neither be created nor destroyed in a chemical reaction, so the number of atoms of each element must be the same on both sides of the equation. Balancing chemical equations ensures that this principle is upheld.
What chemical equation has equal numbers of reactant and product atoms?
Any chemical reaction.
Are chemical equations balanced by changing the subscripts of the molecules?
No - they are usually balanced by changing the numbers before the molecules.
What do you use oxidation numbers and their least common multiples to write?
They are used to write balanced chemical equations.
What indicates the relative numbers of reactants and products in a chemical reaction?
The number of initial chemical compounds (reactants) and the number of final compounds resulted from the reaction (products).
How do you write chemical equations?
it must be cleared that while writing a chemical equation... it must be in symbols of that element then the numbers of the atoms used in the reaction must be equated to both the sides that is it must be equal to right hand side as well as left hand side... we need to remember the symbols of that element
What does not happen in a chemical reaction?
The total numbers of atoms of reactants do not change in products.
In a redox reaction the numbers of some of the elements changes from the reactants to the products?
In a redox reaction the OXIDATION numbers of some of the elements change from the reactants to the products. The numbers of atoms each element never changes in any chemical reaction.
