Answer:
When deformed, it returns to its original shape
Explanation:
- A spring is elastic.
- Elasticity is the property of a material to regain its shape after having been deformed.
- It means that when the force is doubled, the amount of deformation in it gets doubled.
- Hence, the correct option is (b) " When deformed, it returns to its original shape".
Answer:
Explanation:
We know that heat relates to mass, specific heat and variation of temperature experimented because of this heat through the equation 
. The heat released by the unknown material is absorbed by water, so we have 
, and we can write:
Since thermal equilibrium is reached we know that 
, where we have added 
to convert the temperature from Celsius to Kelvin, as <em>we must do</em>. Since we want the specific heat of the unknown material, we do:
Which for our values is:
1) false 2) false 3) true
15 nitrogen atoms are in one molecule
Answer:
false statement are C , F , D.
Explanation:
false statement are C , F , D.
a) triple bond consist of two π bond and one sigma bond.
b) in double bond one bond is σ bond and one is π bond.
c) end to end overlapping is in σ bond and electron density in σ bond lie between the nuclei.
true statements are A, B , E.
π bond restrict rotation is correct and then the statement of bond formation between s orbital is σ bond.
