<span>When ammonium nitrate, NH4NO3(s) is added to water at 25 °C, it dissolves spontaneously and the temperature of the solution decreases. This indicates that the factor causing the substance to dissolve is a change in : delta H > 0,i.e.,enthalpy changes and delta S > 0,i.e.,entopy changes</span>
Answer:
The initial volume of the chlorine gas
Explanation:
Given:
P1= 686mmHg
P2= 991mmHg
V2= 5076mL
V1=?
According to Boyle's law which states that at a constant temperature, the pressure on a gas increases as it's volume decreases.
It can be expressed as : P1V1 = P2V2
Where P1 is the initial pressure
P2= final pressure
V1= initial volume
V2 = final volume
V1= (991mmHg*507.6mL)/686mmHg
V1=503031.6/686
Therefore, The initial volume of the chlorine gas
Answer:
THE ANSWER IS C OK THANKS FOR THE ASK
Explanation:
A) 36.0 x 100 /2 = 1800 g Be
n = m / MM
stoichiometry 1:1
atomic mass of Be= 100 g/ mol
b) theoretical yield