Ionic compounds are formed between oppositely charged ions.
A binary ionic compound is composed of ions of two different elements - one of which is a positive ion(metal), and the other is negative ion (nonmetal).
To write the empirical formula of binary ionic compound we must remember that one ion should be positive and other ion should be negative, then only the correct formula should be written. To write the empirical formula the charges of opposite ions should be criss-crossed.
First empirical formula of binary ionic compound is written between
First Formula would be
Second empirical formula is between
Second Formula would be
Note : When the subscript are same they get cancel out, so would be written as
Third empirical formula is between
Third Formula would be :
Forth empirical formula is between
Forth Formula would be : or
Note- The subscript will be simplified and the formula will be written as .
The empirical formula of four binary ionic compounds are :
The observation for the energy of making bond is released greater than the breaking bond, and the excess is converted to thermal energy.
The reaction for the formation of bonds is given as:
<h3>What is the energy change?</h3>
The reaction of the formation of product requires is released from the bond energy of the reactants. The energy of the reactant is released and is converted to chemical energy.
In the given reaction, the energy required in breaking bonds is less than the energy required in, making bonds.
The bond energy of the product molecules is less than the reactant, thus, the energy in making bonds released is greater, and the excess energy is converted to thermal energy.
Learn more about energy, here:
brainly.com/question/1932868
When a liquid releases enough energy it'll turn into a gas. hope that helps
Answer:
8.089 x 10²³ molecules H₂O
Explanation:
Using stoichiometry to find the answer. Helpful chart to follow if you look it up online
Answer:
a) The theoretical yield is 408.45g of
b) Percent yield =
Explanation:
1. First determine the numer of moles of and .
Molarity is expressed as:
M=
- For the
M=
Therefore there are 1.75 moles of
- For the
M=}{1Lsolution}[/tex]
Therefore there are 2.0 moles of
2. Write the balanced chemical equation for the synthesis of the barium white pigment, :
3. Determine the limiting reagent.
To determine the limiting reagent divide the number of moles by the stoichiometric coefficient of each compound:
- For the :
- For the :
As the is the smalles quantity, this is the limiting reagent.
4. Calculate the mass in grams of the barium white pigment produced from the limiting reagent.
5. The percent yield for your synthesis of the barium white pigment will be calculated using the following equation:
Percent yield =
Percent yield =
The real yield is the quantity of barium white pigment you obtained in the laboratory.