Answer:
Option (a) is the correct answer.
Explanation:
The law of conservation of energy states that energy can neither be created nor it can be destroyed. It can only be transformed from one form to another.
Therefore, the total amount of energy before and after a chemical reaction is the same. Thus, energy is conserved.
Therefore, we can conclude that option (a) is the correct answer.
Explanation:
The answer is 0.5 moles of gold
One of the diseases is smallpox and the second is rinderpest
Answer:
<em>a)C4H5N2O</em>
<em>b)C12H22O11</em>
<em>c)HO2</em>
<em>d)CH2O</em>
<em>e)C3H4O3</em>
Explan ation:
To obtain th e empirical formul a from the molecular for mula you have to divide the subscripts by the largest whole number you can, that provide you a whole number for each one subscripts:
Answer:
The molality of solution=12.605 m
Explanation:
We are given that
Molar mass of Hydrogen peroxide, M=34 g/mol
Density of solution, 
30% Means mass of solute (Hydrogen peroxide)=30 g
Mass of solvent =100-30=70 g
Total mass of solution, m=100 g
Number of moles of solute=
Using the formula
Number of moles of hydrogen peroxide=
Now, molality of solution



Hence, the molality of solution=12.605 m