Answer:
The reaction is an exothermic reaction .
The value of q is -880 kilo Joules.
Explanation:
Exothermic reactions are defined as the reactions in which energy of reactants is more than the energy of the products. In these reactions, energy is released by the system. The total enthalpy of the reaction 
comes out to be negative.
According to reaction, 2 moles of ammonia when reacts with 3 moles of nitrous oxide to give 4 moles of nitrogen gas and 3 moles of water vapor, along with release of 880 kJ of heat energy.
Since, heat is evolved during the course of reaction which means that reaction is an example of Exothermic reaction.
The reaction is an exothermic reaction .
The value of q is -880 kilo Joules.
Answer:
17188 years
Explanation:
Recall the formula;
0.693/t1/2 = 2.303/t log(No/N)
t1/2 = half life of 14C
No = initial activity of 14C
N = activity of 14C at time t
t = age of the sample
Substituting values
0.693/5730= 2.303/t log(160/ 20)
1.21 * 10^-4= 2.0798/t
t = 2.0798/1.21 * 10^-4
t = 17188 years
Answer: 350torr
Explanation: it will reach such i high pressure level that it will reach contobey level
Answer:
The answer to your question is letter d
Explanation:
If we remember there is a limit of electrons that can be place in a sublevel
Sublevel s only accept 2 electrons
Sublevel p only accept 6 electrons
Sublevel d only accept 10 electrons
Sublevel f only accept 14 electrons
This is in agreement wth the levels of energy, that only accept a determine number of electrons
Level Sublevel # of electrons
1 s 2
2 s and p 8 (2 + 6)
3 s, p and d 18 (2+6+10)
4 s, p, d, f 32 (2+6+10+14)
5 s, p, d,f 32 (2+6+10+14)
6 s, p, d 18 (2+6+10)
7 s, p 8 (2+6)
Open- end credit can be used for anything up to a certain limit but nothing can be purchased after they’ve reached the limit
