<h3><u>Answer;</u></h3>
A dense substance that is hard and incompressible
<h3><u>Explanation</u>;</h3>
- <em><u>Crystals are solids that are made up of particles such as molecules, atoms or ions, </u></em>which are arrange in a highly ordered microscopic structure, forming a crystal lattice which extends in all directions.
- Examples of crystals include<em><u> quartz,</u></em> that is made up of silicon (iV) oxide molecules that are arranged in a lattice,<u><em>table salt</em></u> is another example that is made up of sodium and chloride ions that are arranged in a lattice
- Crystals are very ordered, they may be made up of atoms of the same elements or atoms of different elements such as in the case of table salt.
Answer:
Rate of appearance of Bromine is 2.04 X 10-4 M·s−1
Explanation:
According to the balanced stoichiometric equation, for every 5 moles of Br- that react, 3 moles of Br2 is produced so they have the stoichiometric ratio of 5:3.
We can use this to calculate the rate of appearance of bromine since this is a direct relationship.
Br- : Br2
5 : 3
3.4 ✕ 10−4 M·s−1 : x
5x = 1.02 X 10-3 M·s−1
x = 2.04 X 10-4 M·s−1
The energy released when a chemical compound reacts to produce new compounds is called Bonding Energy.