Answer:
The difference lies in the kind of bond involved.
Explanation:
An ionic solid is composed of a network of oppositely charged ions such as sodium chloride solid. An atomic solid is formed by covalent linkage of atoms of the same element to form a three dimensional solid structure such as in diamond and graphite. A molecular solid consists of discreet molecules held together by intermolecular forces. Examples of molecular solids include naphthalene and the fullerenes.
Answer:
256 K
Explanation:
Given data
- Ideal gas constant (R): 0.0821 atm.L/mol.K
We can determine the temperature of the gas using the ideal gas equation.
P × V = n × R × T
T = P × V / n × R
T = 4.20 atm × 20.0 L / 4.00 mol × 0.0821 atm.L/mol.K
T = 256 K
A theory does not change into a scientific law with the accumulation of new or better evidence. A theory will always remain a theory
Antoine Lavoisier was part of a wealthy family in Paris. He pursued to study science upon realizing that chemistry or the study of the elements was not a well-studied field. His discovery of that air was a mixture of nitrogen and oxygen gave rise to the concept of COMBUSTION after repeating the experiments made by Priestly using mercury and other metal oxides.
The event was such a history-making because it disproved that concept that air was a pure substance along with 3 others: earth, fire, and water.
Answer:
0.045 M/s
Explanation:
Given:
Initial concentration of A = 0.625 M
Final concentration of A = 0.100 M
Total time taken for the change of concentration = 11.6 seconds
The average rate of reaction is calculated as:
= 
on substituting the respective values, we get
= 
or
The average rate of reaction = 0.045 M/s
