requires a medium to propagate
Explanation:
due to radiation z a dispersion of light ray into different multiple
enviromental science is a branch of earth science
The answer is A to the question
The acid inside the battery has this electric powder, when it runs out, the acid is no longer useful, the electricity recharges the acid and does it over again. You can tell if the battery is full if you drop it 2 inches the from the floor and it stands, if it falls, then its empty as in no more juice in the battery.
Answer : The enthalpy change of dissolution of is -54.0 kJ/mole
Explanation :
where,
q = heat released by the solution
c = specific heat of water =
m = mass of solution = mass of water + mass of = 102.00 + 1.69 = 103.69 g
= change in temperature =
Now put all the given values in the above formula, we get:
Now we have to calculate the enthalpy change of dissolution of
where,
= enthalpy change of dissolution = ?
q = heat released = 0.659 kJ
m = mass of = 1.69 g
Molar mass of = 138.55 g/mol
Therefore, the enthalpy change of dissolution of is -54.0 kJ/mole