Answer:
burning of wood is an irreversible change bcoz wood after burning wood converted to ashes cannot be converted back to wood nd its chemical composition also changes
Answer : The products of the acid-base reaction between 
and LiOH are, 
and 
Explanation :
Neutralization reaction : It is a type of chemical reaction in which an acid react with a base to give salt and water as a product that means it reacts to give a neutral solution. It is also known as acid-base reaction.
The acid-base reaction will be:
Therefore, the products of the acid-base reaction between and LiOH are, and
Answer:
49.4 mol Oxygen
Explanation:
Mg(NO3)2 ----- 6 O
1 mol 6 mol
8.24 mol x mol
x = 8.24*6/1 = 49.44 mol ≈ 49.4 mol Oxygen
Answer:
Frequency = 0.6 × 10¹⁵ s⁻¹
Explanation:
Given data:
Wavelength = 5.32 × 10⁻⁷ m
Frequency = ?
Solution:
Formula:
speed of light = wavelength × frequency
Frequency = speed of light / wavelength
Frequency = 3 × 10⁸ m/s / 5.32 × 10⁻⁷ m
Frequency = 0.6 × 10¹⁵ s⁻¹
