Answer:
Each element has unique physical properties such as density, melting point, boiling point, etc. These properties can be used to identify an element using a reference book that contains such information about each element. Flame tests, atomic spectra, and spectroscopy can be used to identify some elements.
Explanation:
Answer: Option (b) is the correct answer.
Explanation:
To find molarity, firstly we need to calculate number of moles as follows.
No. of moles = 
= 
= 
Therefore, molratity is defines as number of moles of solute present in liter of solution.
Molarity = 
= 
= 
Thus, we can conclude that molarity of solution is
.
The reaction between iron(II) oxide and carbon monoxide produces iron and carbon dioxide. 3.00 moles of iron can be obtained when 3.00 mol FeO reacts with an excess of CO
<u>Explanation:</u>
During the chemical reaction, products are formed on the basis of the number of moles of reactants available, especially limiting factors. The moles from those reactants is then adapted to balanced chemical reaction factors to form products.
The balanced chemical equation is

Mole ratio of FeO : Fe is 1:1
That is mole of FeO produces 1 mole of Fe
Given, 
So,

= 
= 3.00mol Fe is obtained.