Answer : The final temperature of the mixture is 
Explanation :
In this problem we assumed that heat given by the hot body is equal to the heat taken by the cold body.


And as we know that,
Mass = Density × Volume
Thus, the formula becomes,

where,
=
= specific heat of water = same
=
= mass of water = same
=
= density of water = 1.0 g/mL
= volume of water at
= 
= volume of water at
= 
= final temperature of mixture = ?
= initial temperature of water = 
= initial temperature of water = 
Now put all the given values in the above formula, we get:



Therefore, the final temperature of the mixture is 
Answer:
The more polar bond is C-O.
Explanation:
The greater polarity is due to that the Oxygen atom is more electronegative than the Nitrogen atom, so the negativity of the molecule tends to be on that side.
Answer:
22Ω
Explanation:
Given parameters:
Potential difference = 3.3V
Current = 0.15A
Unknown:
Resistance = ?
Solution:
According to ohm's law, potential difference, current and resistance are related by the expression below;
V = I R
where V is the voltage
I is the current
R is the resistance
3.3 = 0.15 x R
R =
= 22Ω