Answer:
Enthalpy of solution is 583.67 J
Explanation:
The mass of water is 143 g
The mass of NaCl added = 12g
Total mass of solution will be = 
The specific heat of solution = specific heat of water = 4.184 J /g °C
The initial temperature = 22.5°C
Final temperature =21.6°
The change in temperature = 
The enthalpy of solution will be equal to the heat change in the solution.
The heat change of solution will be calculated as:
Thus the enthalpy of solution is 583.67 J (Endothermic reaction)
Answer: An organism is part of a community
Answer:
electrons are negatively charged and are located in the electron cloud (outside the nucleus)
Answer:
if you mix any halogen with any alkali then ionic salt will be formed and also this will cause an exothermic reaction in which heat is getting released
The car's velocity after 5s : 10 m/s
<h3>Further explanation</h3>
Given
velocity=v=72 km/h=20 m/s
time=t = 5 s
acceleration=a = -2 m/s²
Required
velocity after 5s
Solution
Straight motion changes with constant acceleration
vf=final velocity
vi = initial velocity
Input the value :
The car is decelerating (acceleration is negative) so that its speed decreases
